diff --git a/CRM/Volunteer/Form/VolunteerSignUp.php b/CRM/Volunteer/Form/VolunteerSignUp.php
index fc8c31de..c9b3b831 100644
--- a/CRM/Volunteer/Form/VolunteerSignUp.php
+++ b/CRM/Volunteer/Form/VolunteerSignUp.php
@@ -142,7 +142,7 @@ function redirectLegacyRequests() {
     if($vid != NULL) {
       $path = "civicrm/vol/";
       $fragment =  "/volunteer/opportunities?project=$vid&dest=event";
-      $newURL = CRM_Utils_System::url($path, NULL, FALSE, $fragment, FALSE, TRUE);
+      $newURL = CRM_Utils_System::url($path, NULL, FALSE, $fragment, TRUE, FALSE);
       CRM_Utils_System::redirect($newURL);
     }    
   }
@@ -766,7 +766,7 @@ protected function setDestination() {
         $fragment = '/volunteer/opportunities';
     }
 
-    $this->_destination = CRM_Utils_System::url($path, $query, FALSE, $fragment);
+    $this->_destination = CRM_Utils_System::url($path, $query, FALSE, $fragment, TRUE, FALSE);
   }
 
   /**
diff --git a/volunteer.php b/volunteer.php
index 44e3a204..5746a387 100644
--- a/volunteer.php
+++ b/volunteer.php
@@ -310,7 +310,13 @@ function _volunteer_civicrm_pageRun_CRM_Event_Page_EventInfo(&$page) {
       //VOL-191: Skip "shopping cart" if only one need
       if ($openNeeds['count'] == 1) {
         $need = $openNeeds['values'][0];
-        $url = CRM_Utils_System::url('civicrm/volunteer/signup', "reset=1&needs[]={$need['id']}&dest=event");
+        $url = CRM_Utils_System::url('civicrm/volunteer/signup',
+          "reset=1&needs[]={$need['id']}&dest=event", // query string
+          FALSE, // absolute
+          NULL, // fragment
+          TRUE, // FrontEnd
+          FALSE // Backend
+        );
       } else {
         //VOL-190: Hide search pane in "shopping cart" for low role count projects
         $hideSearch = ($openNeeds['count'] < 10) ? "hideSearch=always" : (($openNeeds['count'] < 25) ? "hideSearch=1" : "hideSearch=0");
@@ -318,8 +324,8 @@ function _volunteer_civicrm_pageRun_CRM_Event_Page_EventInfo(&$page) {
           NULL, // query string
           FALSE, // absolute?
           "/volunteer/opportunities?project={$project->id}&dest=event&{$hideSearch}", // fragment
-          TRUE, // htmlize?
-          TRUE // is frontend?
+          TRUE, // Frontend
+          FALSE // Backend?
         );
       }