diff --git a/postgresql13.spec b/postgresql13.spec
index 9aa567b..4326ab8 100644
--- a/postgresql13.spec
+++ b/postgresql13.spec
@@ -461,7 +461,7 @@ touch -r configure tmp
 %patch9
 %if %{with llvm}
 %patch10
-%patch11
+%patch11 -p1
 %endif
 touch -r tmp configure
 rm tmp