diff --git a/index.js b/index.js
index 60b7be6..1310f35 100644
--- a/index.js
+++ b/index.js
@@ -236,7 +236,7 @@
 
     function getSVGNode(el) {
       el = el.node()
-      if(el.tagName.toLowerCase() == 'svg')
+      if(el.tagName.toLowerCase() === 'svg')
         return el
 
       return el.ownerSVGElement