diff --git a/.azure-pipelines/azure-pipelines-build.yml b/.azure-pipelines/azure-pipelines-build.yml
index e0a0400f850f..961e72a3e564 100644
--- a/.azure-pipelines/azure-pipelines-build.yml
+++ b/.azure-pipelines/azure-pipelines-build.yml
@@ -128,7 +128,7 @@ jobs:
               make $BUILD_OPTIONS ENABLE_ASAN=y target/docker-sonic-vs.gz
               mv target/docker-sonic-vs.gz target/docker-sonic-vs-asan.gz
             fi
-            if [ $(K8S_OPTIONS) == 'INCLUDE_KUBERNETES_MASTER=y' ]; then
+            if [ "$(K8S_OPTIONS)" == 'INCLUDE_KUBERNETES_MASTER=y' ]; then
               make $BUILD_OPTIONS $(K8S_OPTIONS) target/sonic-vs.img.gz
               mv target/sonic-vs.img.gz target/sonic-vs-k8s.img.gz
             fi