diff --git a/apps/demo-nginx/Jenkinsfile b/apps/demo-nginx/Jenkinsfile
index 496cbba..d325413 100644
--- a/apps/demo-nginx/Jenkinsfile
+++ b/apps/demo-nginx/Jenkinsfile
@@ -431,19 +431,21 @@ EOF
                             echo ""
                             echo "2. Checking running pod images..."
 
-                            POD_IMAGES=$(kubectl get pods -n ${NAMESPACE} -l app=${APP_NAME} -o jsonpath='{range .items[*]}{.spec.containers[0].image}{"\n"}{end}')
+                            POD_IMAGES=\$(kubectl get pods -n ${NAMESPACE} -l app=${APP_NAME} \
+                            -o jsonpath='{range .items[*]}{.spec.containers[0].image}{"\n"}{end}')
 
                             echo "   Running pod images:"
-                            echo "${POD_IMAGES}"
+                            echo "\${POD_IMAGES}"
                             echo "   Expected tag: ${IMAGE_TAG}"
 
-                            if ! echo "${POD_IMAGES}" | grep -q "${IMAGE_TAG}"; then
+                            if ! echo "\${POD_IMAGES}" | grep -q "${IMAGE_TAG}"; then
                                 echo "   ❌ FAILED: Running pods do not use expected image!"
                                 exit 1
                             fi
 
                             echo "   ✅ All running pods use expected image"
 
+
                             
                             # 3. CRITICAL: Verify actual running pod images
                             echo ""