diff --git a/hack/verify-codegen.sh b/hack/verify-codegen.sh
index e30efdcd11..abf52e2c31 100755
--- a/hack/verify-codegen.sh
+++ b/hack/verify-codegen.sh
@@ -26,5 +26,6 @@ if git status -s 2>&1 | grep -E -q '^\s+[MADRCU]'
 then
 	echo Uncommitted changes in generated sources:
 	git status -s
+	git diff
 	exit 1
 fi