diff --git a/scripts/build_release.sh b/scripts/build_release.sh
index 37fa781..ffe2527 100755
--- a/scripts/build_release.sh
+++ b/scripts/build_release.sh
@@ -14,4 +14,4 @@ then
   echo "  cwd: $CWD"
 fi
 
-docker build -t "$tag" "$TMP/build_release.Dockerfile" .
+docker build -t "$tag" -f "$TMP/build_release.Dockerfile" .