diff --git a/ui/build/kati.go b/ui/build/kati.go
index 439c928..f924b9c 100644
--- a/ui/build/kati.go
+++ b/ui/build/kati.go
@@ -81,6 +81,7 @@
 		"--werror_suffix_rules",
 		"--warn_real_to_phony",
 		"--warn_phony_looks_real",
+		"--top_level_phony",
 		"--kati_stats",
 	}, args...)