diff --git a/script/Vinayak_prot.py b/script/Vinayak_prot.py
index 5d82b78..bf35750 100644
--- a/script/Vinayak_prot.py
+++ b/script/Vinayak_prot.py
@@ -1,4 +1,4 @@
-def switchBox(PV,val,ACK)
+def switchBox(PV,val,ACK):
     flag = 1
     while(flag):
         caput(PV,val)