diff --git a/api/src/org/apache/cloudstack/api/command/user/address/AssociateIPAddrCmd.java b/api/src/org/apache/cloudstack/api/command/user/address/AssociateIPAddrCmd.java
index 75bd9d21d1b..15072ca9a4f 100644
--- a/api/src/org/apache/cloudstack/api/command/user/address/AssociateIPAddrCmd.java
+++ b/api/src/org/apache/cloudstack/api/command/user/address/AssociateIPAddrCmd.java
@@ -57,7 +57,7 @@ import com.cloud.offering.NetworkOffering;
 import com.cloud.projects.Project;
 import com.cloud.user.Account;
 
-@APICommand(name = "associateIpAddress", description = "Acquires and associates a public IP to an account.", responseObject = IPAddressResponse.class, responseView = ResponseView.Restricted,
+@APICommand(name = "associateIpAddress", description = "Acquires and associates a public IP to an account. Either of the parameters are required, i.e. either zoneId, or networkId, or vpcId  ", responseObject = IPAddressResponse.class, responseView = ResponseView.Restricted,
         requestHasSensitiveInfo = false, responseHasSensitiveInfo = false)
 public class AssociateIPAddrCmd extends BaseAsyncCreateCmd {
     public static final Logger s_logger = Logger.getLogger(AssociateIPAddrCmd.class.getName());