diff --git a/index.js b/index.js
index 218acd7..b3fe953 100644
--- a/index.js
+++ b/index.js
@@ -87,7 +87,7 @@ matrixclient.on('Room.timeline', function(event, room, resettimeline) {
     project = project[1];
 
     if(commands[project] !== undefined) {
-        let command = commands[project];
+        const command = commands[project];
 
         const args = body.match(command.regex);
         if(args === null) {