1 files changed, 2 insertions, 2 deletions
diff --git a/src/ngResource/resource.js b/src/ngResource/resource.js
index 4bd845f0..5e58737e 100644
--- a/src/ngResource/resource.js
+++ b/src/ngResource/resource.js
@@ -313,8 +313,8 @@ angular.module('ngResource', ['ng']).
 
       function extractParams(data, actionParams){
         var ids = {};
-        paramDefaults = extend(paramDefaults, actionParams);
-        forEach(paramDefaults || {}, function(value, key){
+        actionParams = extend({}, paramDefaults, actionParams);
+        forEach(actionParams, function(value, key){
           ids[key] = value.charAt && value.charAt(0) == '@' ? getter(data, value.substr(1)) : value;
         });
         return ids;