diff --git a/src/schema/rules/files/raw/micr.yaml b/src/schema/rules/files/raw/micr.yaml
index aba1b48352..c6be24fd95 100644
--- a/src/schema/rules/files/raw/micr.yaml
+++ b/src/schema/rules/files/raw/micr.yaml
@@ -25,6 +25,7 @@ microscopy:
     - .png
     - .tif
     - .json
+    - .nwb
   datatypes:
     - micr
   entities: