diff --git a/tensorflow/tools/dockerfiles/spec.yml b/tensorflow/tools/dockerfiles/spec.yml
index 6fddfe000c6..79fb7785d8f 100644
--- a/tensorflow/tools/dockerfiles/spec.yml
+++ b/tensorflow/tools/dockerfiles/spec.yml
@@ -40,7 +40,7 @@ releases:
     nightly:
         tag_specs:
             - "{nightly}{py}{jupyter}"
-            - "{ubuntu-devel}{py}"
+            - "{_TAG_PREFIX}{ubuntu-devel}{py}"
 
     # Built per-release and pushed to tensorflow/tensorflow
     # --arg _TAG_PREFIX=<val> should be set to "1.11" (for example) or "latest".