diff --git a/.github/workflows/test_extension_dockerfile.yml b/.github/workflows/test_extension_dockerfile.yml
index 1efb8d827..60bdb5615 100644
--- a/.github/workflows/test_extension_dockerfile.yml
+++ b/.github/workflows/test_extension_dockerfile.yml
@@ -79,8 +79,8 @@ jobs:
           mkdir firefox_extensions/normal_build
           unzip -d firefox_extensions/normal_build "./web/packages/extension/dist/firefox_unsigned.xpi"
           unzip -d firefox_extensions/docker_build "./web/docker/docker_builds/packages/extension/dist/firefox_unsigned.xpi"
-          fclones group --unique firefox_extensions/normal_build firefox_extensions/docker_build --exclude "**.wasm" -o result.txt -f fdupes
-          fclones group --unique firefox_extensions/normal_build firefox_extensions/docker_build --exclude "**.wasm" -o firefox_extensions/differences.txt
+          fclones group --unique firefox_extensions/normal_build firefox_extensions/docker_build -o result.txt -f fdupes
+          fclones group --unique firefox_extensions/normal_build firefox_extensions/docker_build -o firefox_extensions/differences.txt
           cat result.txt
 
       - name: Check that the comparison was identical