diff --git a/widelands.spec b/widelands.spec
index 142a228..e2427db 100644
--- a/widelands.spec
+++ b/widelands.spec
@@ -1,9 +1,9 @@
 # norootforbuild
 
-%define build_id build-12
+%define build_id build-13
 
 Name:           widelands
-Version:        12
+Version:        13
 Release:        1
 Summary:        Open source realtime-strategy game