diff --git a/src/schema/rules/files/raw/micr.yaml b/src/schema/rules/files/raw/micr.yaml
index 52d1adb74f..8869985506 100644
--- a/src/schema/rules/files/raw/micr.yaml
+++ b/src/schema/rules/files/raw/micr.yaml
@@ -26,6 +26,7 @@ microscopy:
     - .png
     - .tif
     - .json
+    - .nwb
   datatypes:
     - micr
   entities: