diff --git a/signalgen.py b/signalgen.py
index 3eee25d..4e4be54 100755
--- a/signalgen.py
+++ b/signalgen.py
@@ -128,8 +128,7 @@ def addBurst(values):
 	injectedSpectra = inject.inject_constant_into_file(
 		yr_input = filterbankObj,
 		pulse = pulse,
-		start = samples // 3,
-    	gulp = samples
+		start = samples // 3
 	)
 
 	#and save the new plot