diff --git a/api/src/org/apache/cloudstack/api/ApiConstants.java b/api/src/org/apache/cloudstack/api/ApiConstants.java
index 066df9d3f31..54604f3f80f 100755
--- a/api/src/org/apache/cloudstack/api/ApiConstants.java
+++ b/api/src/org/apache/cloudstack/api/ApiConstants.java
@@ -190,6 +190,7 @@ public class ApiConstants {
     public static final String PORTAL = "portal";
     public static final String PORTABLE_IP_ADDRESS = "portableipaddress";
     public static final String PORT_FORWARDING_SERVICE_ID = "portforwardingserviceid";
+    public static final String POST_URL = "postURL";
     public static final String PRIVATE_INTERFACE = "privateinterface";
     public static final String PRIVATE_IP = "privateip";
     public static final String PRIVATE_PORT = "privateport";
diff --git a/api/src/org/apache/cloudstack/api/response/GetUploadParamsResponse.java b/api/src/org/apache/cloudstack/api/response/GetUploadParamsResponse.java
index 7426d9f76ed..b9be06ecc8f 100644
--- a/api/src/org/apache/cloudstack/api/response/GetUploadParamsResponse.java
+++ b/api/src/org/apache/cloudstack/api/response/GetUploadParamsResponse.java
@@ -33,7 +33,7 @@ public class GetUploadParamsResponse extends BaseResponse {
     @Param(description = "the template/volume ID")
     private UUID id;
 
-    @SerializedName(ApiConstants.URL)
+    @SerializedName(ApiConstants.POST_URL)
     @Param(description = "POST url to upload the file to")
     private URL postURL;
 
@@ -41,19 +41,19 @@ public class GetUploadParamsResponse extends BaseResponse {
     @Param(description = "encrypted data to be sent in the POST request.")
     private String metadata;
 
-    @SerializedName(ApiConstants.TIMEOUT)
+    @SerializedName(ApiConstants.EXPIRES)
     @Param(description = "the timestamp after which the signature expires")
-    private String timeout;
+    private String expires;
 
     @SerializedName(ApiConstants.SIGNATURE)
     @Param(description = "signature to be sent in the POST request.")
     private String signature;
 
-    public GetUploadParamsResponse(UUID id, URL postURL, String metadata, String timeout, String signature) {
+    public GetUploadParamsResponse(UUID id, URL postURL, String metadata, String expires, String signature) {
         this.id = id;
         this.postURL = postURL;
         this.metadata = metadata;
-        this.timeout = timeout;
+        this.expires = expires;
         this.signature = signature;
         setObjectName("getuploadparams");
     }
@@ -74,8 +74,8 @@ public class GetUploadParamsResponse extends BaseResponse {
         this.metadata = metadata;
     }
 
-    public void setTimeout(String timeout) {
-        this.timeout = timeout;
+    public void setTimeout(String expires) {
+        this.expires = expires;
     }
 
     public void setSignature(String signature) {