diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 1468a069e..ba6e44172 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -59,7 +59,7 @@ jobs:
         make --jobs 2
         make install
         sudo make macosx_bundle
-        ARTIFACT=$(ls | grep RawTherapee*.zip)
+        ARTIFACT=(RawTherapee*.zip)
         echo "=== artifact: ${ARTIFACT}"
         echo "::set-env name=ARTIFACT_PATH::${GITHUB_WORKSPACE}/build/${ARTIFACT}"
         echo "::set-env name=ARTIFACT_FILE::${ARTIFACT}"