diff --git a/script/Electric_field_loop3.py b/script/Electric_field_loop3.py
index f8e4ade..0867a09 100644
--- a/script/Electric_field_loop3.py
+++ b/script/Electric_field_loop3.py
@@ -65,7 +65,7 @@ for k in range(0,20):
 
 for k in range(0,len(loops)):
     #filename=open(output_file + "_" + k + ".dat","a")
-    filename=open("data"+file_prefix+time_prefix+"scan_"+str(k)+".txt","a")
+    filename=open("data"+file_prefix+"_scan_"+str(k)+".txt","a")
     for i in range(0,len(forward)):
         print "Setting field = ", forward[i]
         caput("X11MA-XMCD:I-SETraw",forward[i])