diff --git a/tools/xcutils/xc_restore.c b/tools/xcutils/xc_restore.c
index 0235579622..81ff16509c 100644
--- a/tools/xcutils/xc_restore.c
+++ b/tools/xcutils/xc_restore.c
@@ -23,7 +23,7 @@ main(int argc, char **argv)
     xc_interface *xch;
     int io_fd, ret;
     int superpages;
-    unsigned long store_mfn, console_mfn;
+    unsigned long store_mfn = 0, console_mfn = 0;
 
     if ( (argc != 8) && (argc != 9) )
         errx(1, "usage: %s iofd domid store_evtchn "