diff --git a/script/E_N.py b/script/E_N.py
index 00e5c20..a34b6c7 100644
--- a/script/E_N.py
+++ b/script/E_N.py
@@ -15,7 +15,7 @@ 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
         
 set_hx(-6.5)