diff --git a/ocaml-lablgtk.spec b/ocaml-lablgtk.spec
index 2b8a6aa..0d8ce2b 100644
--- a/ocaml-lablgtk.spec
+++ b/ocaml-lablgtk.spec
@@ -65,6 +65,7 @@ developing applications that use %{name}.
 
 %prep
 %setup -q -n lablgtk-%{version}
+find -type f | xargs sed -i -e 's/-warn-error/-w/'
 
 
 %build