diff --git a/pycbc/waveform/waveform.py b/pycbc/waveform/waveform.py
index 628e97044ab..d8fc0e32807 100644
--- a/pycbc/waveform/waveform.py
+++ b/pycbc/waveform/waveform.py
@@ -1192,9 +1192,11 @@ def get_waveform_filter(out, template=None, **kwargs):
     if input_params['approximant'] in fd_approximants(_scheme.mgr.state):
         wav_gen = fd_wav[type(_scheme.mgr.state)]
 
-        duration = get_waveform_filter_length_in_time(**input_params)
-        hp, _ = wav_gen[input_params['approximant']](duration=duration,
-                                               return_hc=False, **input_params)
+        #duration = get_waveform_filter_length_in_time(**input_params)
+        #hp, _ = wav_gen[input_params['approximant']](duration=duration,
+        #                                       return_hc=False, **input_params)
+        duration = input_params['duration']
+        hp, _ = wav_gen[input_params['approximant']](return_hc=False, **input_params)
 
         hp.resize(n)
         out[0:len(hp)] = hp[:]