diff --git a/bower.json b/bower.json
index 9d9d036..5c7ad83 100644
--- a/bower.json
+++ b/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "ngRouteNames",
-  "version": "1.1.1",
+  "version": "1.1.2",
   "main": "./ngRouteNames.js",
   "dependencies": {
     "angular": "~1.2.1",
diff --git a/ngRouteNames.js b/ngRouteNames.js
index d1d9ab4..3ce57b0 100644
--- a/ngRouteNames.js
+++ b/ngRouteNames.js
@@ -56,7 +56,7 @@
                                     index;
 
                                 for (index in searchParams) {
-                                    if (searchParams.hasOwnProperty(index)) {
+                                    if (searchParams.hasOwnProperty(index) && searchParams[index] !== undefined) {
                                         searchString += index + '=' + searchParams[index] + '&';
                                     }
                                 }