diff --git a/ci-scripts/preserveimage.sh b/ci-scripts/preserveimage.sh
index e347d93863a..345d64be003 100644
--- a/ci-scripts/preserveimage.sh
+++ b/ci-scripts/preserveimage.sh
@@ -1,4 +1,4 @@
 IMAGE="$1"
 
 mkdir "$BUILD_REPOSITORY_LOCALPATH/buildimage"
-docker save -o "$BUILD_REPOSITORY_LOCALPATH/buildimage/$BUILD_BUILDNUMBER-dotnet.tar" "$IMAGE"
+docker save -o $BUILD_REPOSITORY_LOCALPATH/buildimage/$BUILD_BUILDNUMBER-dotnet.tar "$IMAGE"