diff --git a/lib/internal/url.js b/lib/internal/url.js
index 9cb14654381e48..33d5437e29f3e6 100644
--- a/lib/internal/url.js
+++ b/lib/internal/url.js
@@ -626,7 +626,7 @@ function onParseHashComplete(flags, protocol, username, password,
 }
 
 function isURLThis(self) {
-  return self?.[context] !== undefined;
+  return (self !== undefined && self !== null && self[context] !== undefined);
 }
 
 class URL {