diff --git a/beet_observer/data_pack.py b/beet_observer/data_pack.py
index e95ca88..9c15d81 100644
--- a/beet_observer/data_pack.py
+++ b/beet_observer/data_pack.py
@@ -1,7 +1,7 @@
 from typing import Any
 
 import beet.contrib.worldgen as wg
-from beet import Context, NamespaceProxy
+from beet import Context, NamespaceProxy, Structure
 
 
 def gen_dp_overlays(
@@ -214,6 +214,8 @@ def gen_registry_overlay(
     else:
         # check if files are exactly the same
         try:
+            if isinstance(registry[name],Structure):
+                registry_overlay[name].data['DataVersion'] = registry[name].data['DataVersion']
             if registry[name].data != registry_overlay[name].data:
                 # move file from overlay pack to overlay in build pack
                 ctx.data.overlays[overlay_dir][name] = registry_overlay[name]
diff --git a/examples/overlay_adds_structure/beet.yaml b/examples/overlay_adds_structure/beet.yaml
new file mode 100644
index 0000000..dbd4727
--- /dev/null
+++ b/examples/overlay_adds_structure/beet.yaml
@@ -0,0 +1,13 @@
+data_pack:
+  load: src
+  pack_format: 57
+  supported_formats: [48,57]
+
+pipeline:
+  - beet_observer
+
+meta:
+  observer:
+    default_format: 57
+    overlays:
+      - process: proc
diff --git a/examples/overlay_adds_structure/proc/data/demo/structure/demo.nbt b/examples/overlay_adds_structure/proc/data/demo/structure/demo.nbt
new file mode 100644
index 0000000..0a1166b
Binary files /dev/null and b/examples/overlay_adds_structure/proc/data/demo/structure/demo.nbt differ
diff --git a/examples/overlay_adds_structure/proc/data/demo/structure/foo.nbt b/examples/overlay_adds_structure/proc/data/demo/structure/foo.nbt
new file mode 100644
index 0000000..ed304e0
Binary files /dev/null and b/examples/overlay_adds_structure/proc/data/demo/structure/foo.nbt differ
diff --git a/examples/overlay_adds_structure/proc/pack.mcmeta b/examples/overlay_adds_structure/proc/pack.mcmeta
new file mode 100644
index 0000000..8b4f4d2
--- /dev/null
+++ b/examples/overlay_adds_structure/proc/pack.mcmeta
@@ -0,0 +1,6 @@
+{
+  "pack": {
+    "pack_format": 48,
+    "description": ""
+  }
+}
diff --git a/examples/overlay_adds_structure/src/data/demo/structure/foo.nbt b/examples/overlay_adds_structure/src/data/demo/structure/foo.nbt
new file mode 100644
index 0000000..896fa35
Binary files /dev/null and b/examples/overlay_adds_structure/src/data/demo/structure/foo.nbt differ
diff --git a/examples/overlay_deletes_structure/beet.yaml b/examples/overlay_deletes_structure/beet.yaml
new file mode 100644
index 0000000..dbd4727
--- /dev/null
+++ b/examples/overlay_deletes_structure/beet.yaml
@@ -0,0 +1,13 @@
+data_pack:
+  load: src
+  pack_format: 57
+  supported_formats: [48,57]
+
+pipeline:
+  - beet_observer
+
+meta:
+  observer:
+    default_format: 57
+    overlays:
+      - process: proc
diff --git a/examples/overlay_deletes_structure/proc/data/demo/structure/foo.nbt b/examples/overlay_deletes_structure/proc/data/demo/structure/foo.nbt
new file mode 100644
index 0000000..ed304e0
Binary files /dev/null and b/examples/overlay_deletes_structure/proc/data/demo/structure/foo.nbt differ
diff --git a/examples/overlay_deletes_structure/proc/pack.mcmeta b/examples/overlay_deletes_structure/proc/pack.mcmeta
new file mode 100644
index 0000000..8b4f4d2
--- /dev/null
+++ b/examples/overlay_deletes_structure/proc/pack.mcmeta
@@ -0,0 +1,6 @@
+{
+  "pack": {
+    "pack_format": 48,
+    "description": ""
+  }
+}
diff --git a/examples/overlay_deletes_structure/src/data/demo/structure/demo.nbt b/examples/overlay_deletes_structure/src/data/demo/structure/demo.nbt
new file mode 100644
index 0000000..0f64ed6
Binary files /dev/null and b/examples/overlay_deletes_structure/src/data/demo/structure/demo.nbt differ
diff --git a/examples/overlay_deletes_structure/src/data/demo/structure/foo.nbt b/examples/overlay_deletes_structure/src/data/demo/structure/foo.nbt
new file mode 100644
index 0000000..896fa35
Binary files /dev/null and b/examples/overlay_deletes_structure/src/data/demo/structure/foo.nbt differ
diff --git a/examples/overlay_replaces_structure/beet.yaml b/examples/overlay_replaces_structure/beet.yaml
new file mode 100644
index 0000000..41b69cb
--- /dev/null
+++ b/examples/overlay_replaces_structure/beet.yaml
@@ -0,0 +1,12 @@
+data_pack:
+  load: src
+  pack_format: 57
+  supported_formats: [48,57]
+
+pipeline:
+  - beet_observer
+
+meta:
+  observer:
+    overlays:
+      - process: proc
diff --git a/examples/overlay_replaces_structure/proc/data/demo/structure/demo.nbt b/examples/overlay_replaces_structure/proc/data/demo/structure/demo.nbt
new file mode 100644
index 0000000..ac64a24
Binary files /dev/null and b/examples/overlay_replaces_structure/proc/data/demo/structure/demo.nbt differ
diff --git a/examples/overlay_replaces_structure/proc/data/demo/structure/foo.nbt b/examples/overlay_replaces_structure/proc/data/demo/structure/foo.nbt
new file mode 100644
index 0000000..ed304e0
Binary files /dev/null and b/examples/overlay_replaces_structure/proc/data/demo/structure/foo.nbt differ
diff --git a/examples/overlay_replaces_structure/proc/pack.mcmeta b/examples/overlay_replaces_structure/proc/pack.mcmeta
new file mode 100644
index 0000000..8b4f4d2
--- /dev/null
+++ b/examples/overlay_replaces_structure/proc/pack.mcmeta
@@ -0,0 +1,6 @@
+{
+  "pack": {
+    "pack_format": 48,
+    "description": ""
+  }
+}
diff --git a/examples/overlay_replaces_structure/src/data/demo/structure/demo.nbt b/examples/overlay_replaces_structure/src/data/demo/structure/demo.nbt
new file mode 100644
index 0000000..91f3369
Binary files /dev/null and b/examples/overlay_replaces_structure/src/data/demo/structure/demo.nbt differ
diff --git a/examples/overlay_replaces_structure/src/data/demo/structure/foo.nbt b/examples/overlay_replaces_structure/src/data/demo/structure/foo.nbt
new file mode 100644
index 0000000..896fa35
Binary files /dev/null and b/examples/overlay_replaces_structure/src/data/demo/structure/foo.nbt differ
diff --git a/tests/snapshots/examples__build_overlay_adds_structure__0.pack.md b/tests/snapshots/examples__build_overlay_adds_structure__0.pack.md
new file mode 100644
index 0000000..066bc93
--- /dev/null
+++ b/tests/snapshots/examples__build_overlay_adds_structure__0.pack.md
@@ -0,0 +1,40 @@
+# Lectern snapshot
+
+## Data pack
+
+`@data_pack pack.mcmeta`
+
+```json
+{
+  "pack": {
+    "pack_format": 57,
+    "description": "",
+    "supported_formats": [
+      48,
+      57
+    ]
+  },
+  "overlays": {
+    "entries": [
+      {
+        "formats": 48,
+        "directory": "overlay_48"
+      }
+    ]
+  }
+}
+```
+
+### demo
+
+[`@structure demo:foo`](data:application/octet-stream;base64,H4sIAKO0W2cC/0WMwQqDQAxER1Zb19If6rnnHr2nEiFUd2WTk/58oyAGBjLDvOmAiFpl5QBgV3Uq4vad8vDTbncBjRoZ++9EWLKewHUR94UmNuMDaVF/aGY8Z0k8FBrtRVK81XIyMeFj2TcebzLquajk5MGGP9V3+RCWAAAA)
+
+## Overlay `overlay_48`
+
+`@overlay overlay_48`
+
+### demo
+
+[`@structure demo:demo`](data:application/octet-stream;base64,H4sIAAAAAAAAA0WMsQqDQBBER04Tz6TPb6RObZ0yrWx0A0u8O3G3ytfnPBAHBmZg3nSAR63yYwdgc7Xb4/Se0/jVbmsOjRoZ55wJtyTdgUMe54VmNuOCtKifFBi3IJHHlT72mIRCitNQjvO+5Whiwlp4h0tPRi9eVVIErnf8AexFbD2gAAAA)
+
+`@endoverlay`
diff --git a/tests/snapshots/examples__build_overlay_deletes_structure__0.pack.md b/tests/snapshots/examples__build_overlay_deletes_structure__0.pack.md
new file mode 100644
index 0000000..e9d0bf1
--- /dev/null
+++ b/tests/snapshots/examples__build_overlay_deletes_structure__0.pack.md
@@ -0,0 +1,40 @@
+# Lectern snapshot
+
+## Data pack
+
+`@data_pack pack.mcmeta`
+
+```json
+{
+  "pack": {
+    "pack_format": 57,
+    "description": "",
+    "supported_formats": [
+      48,
+      57
+    ]
+  },
+  "overlays": {
+    "entries": [
+      {
+        "formats": 57,
+        "directory": "default_overlay"
+      }
+    ]
+  }
+}
+```
+
+### demo
+
+[`@structure demo:foo`](data:application/octet-stream;base64,H4sIAKO0W2cC/0WMwQqDQAxER1Zb19If6rnnHr2nEiFUd2WTk/58oyAGBjLDvOmAiFpl5QBgV3Uq4vad8vDTbncBjRoZ++9EWLKewHUR94UmNuMDaVF/aGY8Z0k8FBrtRVK81XIyMeFj2TcebzLquajk5MGGP9V3+RCWAAAA)
+
+## Overlay `default_overlay`
+
+`@overlay default_overlay`
+
+### demo
+
+[`@structure demo:demo`](data:application/octet-stream;base64,H4sIAAAAAAAAA0WLsQqDQBBER84YzwTyK9apU6dMv5EJLOqduFvl63MKkoEHMzCvAyJq0y8DgI3qIKJ5T3kYrdtWwMlcnKUXIyzZDuGfiPMiE925Ky3qp8zEbdbEYZWP381zYvm1TK6utN0LuDzE5cXVNCfg2uMHeoPLa5gAAAA=)
+
+`@endoverlay`
diff --git a/tests/snapshots/examples__build_overlay_replaces_structure__0.pack.md b/tests/snapshots/examples__build_overlay_replaces_structure__0.pack.md
new file mode 100644
index 0000000..9884239
--- /dev/null
+++ b/tests/snapshots/examples__build_overlay_replaces_structure__0.pack.md
@@ -0,0 +1,42 @@
+# Lectern snapshot
+
+## Data pack
+
+`@data_pack pack.mcmeta`
+
+```json
+{
+  "pack": {
+    "pack_format": 57,
+    "description": "",
+    "supported_formats": [
+      48,
+      57
+    ]
+  },
+  "overlays": {
+    "entries": [
+      {
+        "formats": 48,
+        "directory": "overlay_48"
+      }
+    ]
+  }
+}
+```
+
+### demo
+
+[`@structure demo:demo`](data:application/octet-stream;base64,H4sIAKO0W2cC/0WMwQrCQBBDI1t1tx78H8+ePXofSwqD7W7pzKkf5Te6LZQGAgnkpQUSGtOFAcDq0+6Ey2co3dfatQWczcVZcyXCVGwHDiVcJxnozg2JaF4yEvdRM7tZen+Yl8y6i8yurty+68vtKS5vzqYlA/GHP4N8NoiYAAAA)
+
+[`@structure demo:foo`](data:application/octet-stream;base64,H4sIAKO0W2cC/0WMwQqDQAxER1Zb19If6rnnHr2nEiFUd2WTk/58oyAGBjLDvOmAiFpl5QBgV3Uq4vad8vDTbncBjRoZ++9EWLKewHUR94UmNuMDaVF/aGY8Z0k8FBrtRVK81XIyMeFj2TcebzLquajk5MGGP9V3+RCWAAAA)
+
+## Overlay `overlay_48`
+
+`@overlay overlay_48`
+
+### demo
+
+[`@structure demo:demo`](data:application/octet-stream;base64,H4sIAKO0W2cC/0WNwQrCMBBEp6TWpH6A/+K5Z49eZW1XWNokpbsnP8pvNA0UBwZ2YN9MDwS0Kh92AHY3hwO615LHWfs9OZzUyLjchXBr1gP4K+C80sJmXBGP9k6RcY2SeNzobbdJKOY0PWtx+fecTEy4bpS2y0BGD95UcgL8Fz8VupHeoAAAAA==)
+
+`@endoverlay`