diff --git a/script/Electric_field_loop.py b/script/Electric_field_loop.py
index 81048a4..32b8ddd 100644
--- a/script/Electric_field_loop.py
+++ b/script/Electric_field_loop.py
@@ -41,7 +41,7 @@ os.chdir("/sls/X11MA/data/X11MA/beamtime_december/")
 #forward loop
 
 file_prefix = time.strftime("%y%m%d")
-time_prefix = datatime.datetime.fromtimstamp(ts).strftime('%H:%M:%s')
+time_prefix = datetime.datetime.fromtimstamp(ts).strftime('%H:%M:%s')
 filename=open("data"+file_prefix++time_prefix+".txt","a")
 
 #for i in range(0,No_of_steps):