diff --git a/docker_build b/docker_build
index 9778a51998d67a211b9ba7a314536867fa4ea448_ZG9ja2VyX2J1aWxk..7a11539b5bf45896d6f666ff116f4ee89b2b2f91_ZG9ja2VyX2J1aWxk 100755
--- a/docker_build
+++ b/docker_build
@@ -14,7 +14,7 @@
 then
     hg cfensureconf || echo "ignore all cfensureconf errors to bypass bad error code with git repositories"
 else
-    hg cfensureconf
+    hg cfensureconf || { echo 'hg cfensureconf failed' ; popd ; exit 1; }
 fi
 popd