diff --git a/contrib/bsnmp/snmp_mibII/mibII_ip.c b/contrib/bsnmp/snmp_mibII/mibII_ip.c
index 11efe8274dd8..1e33dc974903 100644
--- a/contrib/bsnmp/snmp_mibII/mibII_ip.c
+++ b/contrib/bsnmp/snmp_mibII/mibII_ip.c
@@ -151,7 +151,7 @@ int
 op_ip(struct snmp_context *ctx, struct snmp_value *value,
     u_int sub, u_int idx __unused, enum snmp_op op)
 {
-	int old;
+	int old = 0;
 
 	switch (op) {