diff --git a/signalgen.py b/signalgen.py
index 782fee7..235c663 100755
--- a/signalgen.py
+++ b/signalgen.py
@@ -125,13 +125,14 @@ def addBurst(values):
 	#and save the new plot
 	show_dynamic(injectedSpectra, f"{basename} Dynamic Spectra and {values.dm} DM Pulse", save=True)
 	#now generate new filterbank file
+	newName = f"{basename}_injected.fil"
 	#build header from original file
 	headerDic = filterbankObj.your_header.__dict__
 	#remove extraneous keys
 	for key in ['filelist', 'filename']:
 		headerDic.pop(key, None)
-	sigprocObj = make_sigproc_object(**headerDic)
-	newName = f"{basename}_injected.fil"
+	headerDic['rawdatafile'] = newName
+	sigprocObj = make_sigproc_object(**headerDic)	
 	sigprocObj.write_header(newName)
 	sigprocObj.append_spectra(injectedSpectra, newName)
 	logger.info(f"{newName} successfully written.")