diff --git a/services/spelling/.gitignore b/services/spelling/.gitignore
index b0356cac1c..c688965c58 100644
--- a/services/spelling/.gitignore
+++ b/services/spelling/.gitignore
@@ -5,4 +5,5 @@ app.js
 test/UnitTests/js/*
 node_modules/*
 test/unit/js/
-cache/spell.cache
\ No newline at end of file
+cache/spell.cache
+app.js.map