diff --git a/lib/compiler.js b/lib/compiler.js
index b362453..61d68d7 100644
--- a/lib/compiler.js
+++ b/lib/compiler.js
@@ -661,6 +661,7 @@ function getExcludedExtensions() {
   return {
     '.json': '.json',
     '.node': 'node',
+    '.map': '.map'
   };
 }