diff --git a/gtk2.spec b/gtk2.spec
index 8297a20..1c874a5 100644
--- a/gtk2.spec
+++ b/gtk2.spec
@@ -19,7 +19,7 @@ Version: %{base_version}
 Release: 1%{?dist}
 License: LGPL
 Group: System Environment/Libraries
-Source: gtk+-%{version}.tar.gz
+Source: gtk+-%{version}.tar.bz2
 Source1: update-scripts.tar.gz
 
 # Biarch changes