diff --git a/vtk.spec b/vtk.spec
index cadc1c5..9a2d6b1 100644
--- a/vtk.spec
+++ b/vtk.spec
@@ -10,7 +10,7 @@ License:	BSD-like
 Group:		System Environment/Libraries
 Packager:	Werner Hoch <werner.ho@gmx.de>
 
-Source:		http://www.vtk.org/files/release/5.0/%{name}-%{version}.tar.gz
+Source:		http://www.vtk.org/files/release/5.0/%{name}-%{version}.tar.bz2
 #Patch0:		vtk-5.0.0-pythondestdir.patch
 Patch1:		vtk-5.0.4-gcc43.patch
 URL:		http://vtk.org/