diff --git a/src/helpers/insertBefore.js b/src/helpers/insertBefore.js
index a70f40f9..b3fee727 100644
--- a/src/helpers/insertBefore.js
+++ b/src/helpers/insertBefore.js
@@ -12,7 +12,7 @@ export function insertBefore(parentInstance, childInstance, beforeChildInstance)
 {
     log('info', 'lifecycle::insertBefore');
 
-    invariant(childInstance === beforeChildInstance, 'Cannot insert node before itself');
+    invariant(childInstance !== beforeChildInstance, 'Cannot insert node before itself');
 
     if (parentInstance.children.indexOf(childInstance) === -1)
     {