diff --git a/zebra/irdp_interface.c b/zebra/irdp_interface.c
index 7871f4c..9aace8c 100644
--- a/zebra/irdp_interface.c
+++ b/zebra/irdp_interface.c
@@ -633,7 +633,7 @@
        "Select IRDP address\n"
        "Old preference level\n")
 {
-  struct listnode *node;
+  struct listnode *node, *nnode;
   struct in_addr ip; 
   int pref;
   int ret;