diff --git a/dangerfile.js b/dangerfile.js
index bfc41312e4..d60da35b58 100644
--- a/dangerfile.js
+++ b/dangerfile.js
@@ -70,7 +70,7 @@ const percentFormatter = new Intl.NumberFormat('en', {
 });
 
 function change(decimal) {
-  if (Number === Infinity) {
+  if (decimal === Infinity) {
     return 'New file';
   }
   if (decimal === -1) {