diff --git a/Controller/wheatController.lua b/Controller/wheatController.lua
index 724e45b..6091989 100644
--- a/Controller/wheatController.lua
+++ b/Controller/wheatController.lua
@@ -20,7 +20,7 @@ function toMatrix(str)
 
     str = str:sub(2, len - 1)
     len = len - 2
-    if ob = 1 then
+    if ob == 1 then
         return toArray(str)
     else
         local level = 0