diff --git a/signalgen.py b/signalgen.py
index dfe051d..4845eab 100755
--- a/signalgen.py
+++ b/signalgen.py
@@ -126,7 +126,7 @@ def addBurst(values):
 	show_dynamic(injectedSpectra, f"{basename} Dynamic Spectra and {values.dm} DM Pulse", save=True)
 	#now generate new filterbank file
 
-	sigprocObj = make_sigproc_object(**(filterbankObj.your_header))
+	sigprocObj = make_sigproc_object(**(filterbankObj.your_header.__dict__))
 	newName = f"{basename}_injected.fil"
 	sigprocObj.write_header(newName)
 	sigprocObj.append_spectra(injectedSpectra, newName)