diff --git a/.github/workflows/build-with-bal-test-graalvm.yml b/.github/workflows/build-with-bal-test-graalvm.yml
index 3d25ebb035..bfa0f715ee 100644
--- a/.github/workflows/build-with-bal-test-graalvm.yml
+++ b/.github/workflows/build-with-bal-test-graalvm.yml
@@ -39,7 +39,7 @@ jobs:
         if: ${{ github.event_name != 'schedule' || (github.event_name == 'schedule' && github.repository_owner == 'ballerina-platform') }}
         uses: ballerina-platform/ballerina-standard-library/.github/workflows/build-with-bal-test-graalvm-template.yml@2201.7.x
         with:
-            lang_tag: ${{ inputs.lang_tag || 2201.7.x }}
+            lang_tag: ${{ inputs.lang_tag || '2201.7.x' }}
             lang_version: ${{ inputs.lang_version }}
             native_image_options: '-J-Xmx7G ${{ inputs.native_image_options }}'
             additional_ubuntu_build_flags: '-x :http-native:test -x :http-compiler-plugin-tests:test ${{ inputs.build_properties }}'