diff --git a/azure-pipelines.yaml b/azure-pipelines.yaml
index 19892854d..61fbf0a2c 100755
--- a/azure-pipelines.yaml
+++ b/azure-pipelines.yaml
@@ -92,7 +92,7 @@ stages:
         pool: '${{service.buildPool}}'
         timeoutInMinutes: ${{service.buildTimeout}}
         container:
-          ${{ if variables.setupImages }}:
+          ${{ if eq(variables.setupImages, true) }}:
             image: $(buildImageUpstream)/${{service.name}}:$(Build.BuildNumber)
           ${{ else }}:
             image: $(buildImageUpstream)/${{service.name}}:latest