diff --git a/script/E_N.py b/script/E_N.py
index a34b6c7..ace792d 100644
--- a/script/E_N.py
+++ b/script/E_N.py
@@ -28,6 +28,6 @@ while True:
     otf(start=385, end=435, time=2, delay=5,mode = 'CIRC+', offset = -0.7, name = 'NE_plus')
 
     counter = counter +1
-    if counter = 4:
+    if counter == 4:
         break
     
\ No newline at end of file