diff --git a/scripts/material.js b/scripts/material.js
index 9b4f7b53..1f1c3758 100644
--- a/scripts/material.js
+++ b/scripts/material.js
@@ -2,7 +2,7 @@
 
 $(function (){
 
-    if (ripples) {
+    if (typeof ripples == "object") {
         ripples.init(".btn:not(.btn-link), .navbar a:not(.withoutripple), .nav-tabs a:not(.withoutripple), .withripple");
     }
 
diff --git a/template/material/scripts/material.js b/template/material/scripts/material.js
index 9b4f7b53..1f1c3758 100644
--- a/template/material/scripts/material.js
+++ b/template/material/scripts/material.js
@@ -2,7 +2,7 @@
 
 $(function (){
 
-    if (ripples) {
+    if (typeof ripples == "object") {
         ripples.init(".btn:not(.btn-link), .navbar a:not(.withoutripple), .nav-tabs a:not(.withoutripple), .withripple");
     }