diff --git a/.gitignore b/.gitignore
index ef632fb..fe57f18 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,3 +8,4 @@ openmpi-1.4.1-RH.tar.bz2
 /openmpi-1.6.2-clean.tar.xz
 /openmpi-1.6.3-clean.tar.xz
 /openmpi-1.6.4-clean.tar.bz2
+/openmpi-1.6.4-clean.tar.xz
diff --git a/sources b/sources
index 89677b4..ca327e7 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-ddc82e1309834638d2b349e784da2ce3  openmpi-1.6.4-clean.tar.bz2
+edee8f55e759294da58540d796a9fbd1  openmpi-1.6.4-clean.tar.xz