diff --git a/scripts/emoji-data-strip.js b/scripts/emoji-data-strip.js
index 45b4c96e1d..9cec10735f 100644
--- a/scripts/emoji-data-strip.js
+++ b/scripts/emoji-data-strip.js
@@ -14,5 +14,6 @@ const output = Object.keys(EMOJI_DATA).map(
     },
 );
 
-// Write to a file in src. Changes should be checked in to git
+// Write to a file in src. Changes should be checked into git. This file is copied by
+// babel using --copy-files
 fs.writeFileSync('./src/stripped-emoji.json', JSON.stringify(output));