diff --git a/net.retrodeck.retrodeck.yml b/net.retrodeck.retrodeck.yml
index 929cc9bc..525b084e 100644
--- a/net.retrodeck.retrodeck.yml
+++ b/net.retrodeck.retrodeck.yml
@@ -78,7 +78,7 @@ modules:
         mkdir -p ${FLATPAK_DEST}/retrodeck/
         if [[ $VERSION == *"cooker"* ]];
         then
-          VERSION="$VERSION[${cat ./buildid}]"
+          VERSION="$VERSION[$(cat ./buildid)]"
         fi
         echo $VERSION >> ${FLATPAK_DEST}/retrodeck/version
         cat ${FLATPAK_DEST}/retrodeck/version