diff --git a/lib/6to5/generation/whitespace.js b/lib/6to5/generation/whitespace.js
index ee10a63ca7..e43752c577 100644
--- a/lib/6to5/generation/whitespace.js
+++ b/lib/6to5/generation/whitespace.js
@@ -38,7 +38,11 @@ Whitespace.prototype.getNewlinesAfter = function (node) {
     }
   });
 
-  return this.getNewlinesBetween(startToken, endToken);
+  if (endToken.type.type === "eof") {
+    return 1;
+  } else {
+    return this.getNewlinesBetween(startToken, endToken);
+  }
 };
 
 Whitespace.prototype.getNewlinesBetween = function (startToken, endToken) {