diff --git a/.gitmodules b/.gitmodules
index 0ff68cecdaf..bec0b848ccf 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,4 +1,4 @@
-[submodule "kotlinx.serialization"]
-    path = kotlinx-serialization
-    url = https://github.com/Kotlin/kotlinx.serialization
-    branch = doc-restructuring
\ No newline at end of file
+[submodule "kotlinx-serialization"]
+	path = docs-test-submodule/kotlinx-serialization
+	url = https://github.com/Kotlin/kotlinx.serialization
+	branch = doc-restructuring
diff --git a/docs-test-submodule/kotlinx-serialization b/docs-test-submodule/kotlinx-serialization
new file mode 160000
index 00000000000..4eb867cef67
--- /dev/null
+++ b/docs-test-submodule/kotlinx-serialization
@@ -0,0 +1 @@
+Subproject commit 4eb867cef67b0974ea9406130323a2ac2976a2d8