diff --git a/signalgen.py b/signalgen.py
index 60b370f..782fee7 100755
--- a/signalgen.py
+++ b/signalgen.py
@@ -128,7 +128,7 @@ def addBurst(values):
 	#build header from original file
 	headerDic = filterbankObj.your_header.__dict__
 	#remove extraneous keys
-	for key in ['filelist']:
+	for key in ['filelist', 'filename']:
 		headerDic.pop(key, None)
 	sigprocObj = make_sigproc_object(**headerDic)
 	newName = f"{basename}_injected.fil"