diff --git a/.gitignore b/.gitignore
index 25ea06d..49f9eb4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1 @@
-/gambc-v4_6_3-devel.tgz
+/gambc-v4_6_4-devel.tgz
diff --git a/gambit-c.spec b/gambit-c.spec
index f0ce6ea..6dbd2a3 100644
--- a/gambit-c.spec
+++ b/gambit-c.spec
@@ -3,11 +3,11 @@
 # --with termite
 #   The termite distributed programming system is currently broken
 
-%define dirname gambc-v4_6_3-devel
-%define termite_rev 080714_2216
+%global dirname gambc-v4_6_4-devel
+%global termite_rev 080714_2216
 
 Name:           gambit-c
-Version:        4.6.3
+Version:        4.6.4
 Release:        1%{?dist}
 Summary:        Scheme programming system
 
@@ -257,6 +257,9 @@ fi
 
 
 %changelog
+* Wed Feb 15 2012 Michel Salim <salimma@fedoraproject.org> - 4.6.4-1
+- Update to 4.6.4
+
 * Wed Feb  1 2012 Michel Salim <salimma@fedoraproject.org> - 4.6.3-1
 - Update to 4.6.3
 
diff --git a/sources b/sources
index cb2da56..f87de73 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-eb9cf8a776e50dda2b510fe9be5cff0f  gambc-v4_6_3-devel.tgz
+c5a546032468a0abc3bab7af64ae5623  gambc-v4_6_4-devel.tgz