diff --git a/glean/db/Glean/Query/Codegen.hs b/glean/db/Glean/Query/Codegen.hs
index d2f9de20c..83d3f925a 100644
--- a/glean/db/Glean/Query/Codegen.hs
+++ b/glean/db/Glean/Query/Codegen.hs
@@ -612,7 +612,7 @@ compileStatements
                   -- bind into the output directly
                   cont out (\_ -> return ())
               | otherwise =
-                  output $ \reg ->
+                  outputUninitialized $ \reg ->
                   cont reg (\fail -> cmpOutputPat syscalls reg chunks fail)
 
             mtrans :: Maybe PredicateTransformation