diff --git a/.cloudbuild/cloudbuild-test-c.yaml b/.cloudbuild/cloudbuild-test-c.yaml
index 83571abb..7adaaa37 100644
--- a/.cloudbuild/cloudbuild-test-c.yaml
+++ b/.cloudbuild/cloudbuild-test-c.yaml
@@ -33,4 +33,4 @@ steps:
     waitFor: [ "graalvm-c-build" ]
 
 options:
-  logging: CLOUD_LOGGING_ONLY
+  logging: CLOUD_LOGGING_ONLY
\ No newline at end of file
diff --git a/.cloudbuild/cloudbuild.yaml b/.cloudbuild/cloudbuild.yaml
index 41b661af..445c04fb 100644
--- a/.cloudbuild/cloudbuild.yaml
+++ b/.cloudbuild/cloudbuild.yaml
@@ -16,7 +16,7 @@ timeout: 7200s # 2 hours
 substitutions:
   _JAVA_SHARED_CONFIG_VERSION: '1.15.3' # {x-version-update:google-cloud-shared-config:current}
   _IMAGE_REPOSITORY: us-docker.pkg.dev/java-graalvm-ci-prod/graalvm-integration-testing
-  _COMMIT_HASH_TAG: infrastructure-public-image-$SHORT_SHA
+  _COMMIT_HASH_TAG: infrastructure-public-image-${SHORT_SHA}
 steps:
   # GraalVM A build
   - name: gcr.io/cloud-builders/docker