diff --git a/srcpkgs/libgsf/template b/srcpkgs/libgsf/template
index 5744fef449..f274c581c6 100644
--- a/srcpkgs/libgsf/template
+++ b/srcpkgs/libgsf/template
@@ -29,6 +29,7 @@ Add_dependency build libxml2-devel
 Add_dependency build glibc-devel
 Add_dependency build zlib-devel
 Add_dependency build bzip2-devel
+Add_dependency build pygtk-devel
 
 post_install()
 {