diff --git a/rtkit.spec b/rtkit.spec
index eeb86bc..3a46d5e 100644
--- a/rtkit.spec
+++ b/rtkit.spec
@@ -5,7 +5,7 @@ Summary:          REALTIMEKIT Realtime Policy and Watchdog Daemon
 
 License:          GPLv3+ and BSD
 URL:              https://github.com/heftig/rtkit
-Source0:          https://github.com/heftig/rtkit/releases/download/v0.12/%{name}-%{version}.tar.xz
+Source0:          https://github.com/heftig/rtkit/releases/download/v0.12/%{name}-%{version}.tar.gz
 
 BuildRequires:    systemd dbus-devel libcap-devel polkit-devel libtool autoconf automake
 Requires:         dbus  polkit