diff --git a/ChangeLog b/ChangeLog
index d0d3e9ef87..950592b530 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Thu Jan 29 17:15:18 GMT 2009 John Levon <john.levon@sun.com>
+
+	* src/libvirt.c: fix another printf("%s", NULL) case
+
 Thu Jan 29 09:03:17 PST 2009 John Levon <john.levon@sun.com>
 
 	* src/xend_internal.c: correctly enable floppies for HVM guests.
diff --git a/src/libvirt.c b/src/libvirt.c
index 72095dd5bc..3b5bc2b998 100644
--- a/src/libvirt.c
+++ b/src/libvirt.c
@@ -6924,7 +6924,7 @@ error:
 int
 virNodeNumOfDevices(virConnectPtr conn, const char *cap, unsigned int flags)
 {
-    DEBUG("conn=%p, cap=%s, flags=%d", conn, cap, flags);
+    DEBUG("conn=%p, cap=%s, flags=%d", conn, NULLSTR(cap), flags);
 
     virResetLastError();