diff --git a/examples/proxy/proxy.js b/examples/proxy/proxy.js
index 174fe93..407a74d 100644
--- a/examples/proxy/proxy.js
+++ b/examples/proxy/proxy.js
@@ -180,6 +180,6 @@ function shouldDump(name, direction) {
   return matches(printNameWhitelist[name]);
 
   function matches(result) {
-    return result !== null && result.indexOf(direction) !== -1;
+    return result != null && result.indexOf(direction) !== -1;
   }
 }