diff --git a/lib/util/Components.js b/lib/util/Components.js
index 7b931c2234..b112923f63 100644
--- a/lib/util/Components.js
+++ b/lib/util/Components.js
@@ -21,7 +21,7 @@ const isFirstLetterCapitalized = require('./isFirstLetterCapitalized');
 const isDestructuredFromPragmaImport = require('./isDestructuredFromPragmaImport');
 
 function getId(node) {
-  return node && node.range.join(':');
+  return node ? `${node.range[0]}:${node.range[1]}` : '';
 }
 
 function usedPropTypesAreEquivalent(propA, propB) {