diff --git a/role_dispatcher.js b/role_dispatcher.js
index e25fd70..688c536 100644
--- a/role_dispatcher.js
+++ b/role_dispatcher.js
@@ -87,7 +87,7 @@ function calculateCreepBodies(room){
 	// 400 cost
 	if(room.memory.extensions >= 2){
 		creepBodies.upgrader = [MOVE, MOVE, WORK, WORK, CARRY, CARRY];
-		creepBodes.builder = [MOVE, MOVE, WORK, WORK, CARRY, CARRY];
+		creepBodies.builder = [MOVE, MOVE, WORK, WORK, CARRY, CARRY];
 	}
 
 	// 450 cost