1 files changed, 2 insertions, 2 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/skyframe/AspectFunction.java b/src/main/java/com/google/devtools/build/lib/skyframe/AspectFunction.java
index 4035242c4e..ba84c5b7fb 100644
--- a/src/main/java/com/google/devtools/build/lib/skyframe/AspectFunction.java
+++ b/src/main/java/com/google/devtools/build/lib/skyframe/AspectFunction.java
@@ -376,10 +376,10 @@ public final class AspectFunction implements SkyFunction {
         transitivePackages.build());
   }
 
-  @Nullable
   @Override
   public String extractTag(SkyKey skyKey) {
-    return null;
+    AspectKey aspectKey = (AspectKey) skyKey.argument();
+    return Label.print(aspectKey.getLabel());
   }
 
   /**