diff --git a/server/src/com/cloud/network/rules/FirewallRuleVO.java b/server/src/com/cloud/network/rules/FirewallRuleVO.java
index fc37d62abc8..c2539310d6e 100644
--- a/server/src/com/cloud/network/rules/FirewallRuleVO.java
+++ b/server/src/com/cloud/network/rules/FirewallRuleVO.java
@@ -209,7 +209,7 @@ public class FirewallRuleVO implements Identity, FirewallRule {
         this.accountId = accountId;
         this.domainId = domainId;
         
-        if (sourceIpAddressId == null) {
+        if (ipAddressId == null) {
             assert (purpose == Purpose.NetworkACL) : "ipAddressId can be null for " + Purpose.NetworkACL + " only";
         }