diff --git a/lib/__init__.py b/lib/__init__.py
index 164b3f4..114d04e 100644
--- a/lib/__init__.py
+++ b/lib/__init__.py
@@ -3,11 +3,8 @@ import numpy as np
 from matplotlib.pylab import show
 
 from .util import *
-from .data import *
-gen_filters = lambda cascade, srate: [
-    s2z(*f[1], fc=f[0], srate=srate, gain=10**(f[2]/20)) for f in cascade
-]
 from .bq import *
+from .data import *
 from .butterworth import *
 from .sweeps import *
 from .smoothfft import *
diff --git a/lib/bq.py b/lib/bq.py
index fd338cd..b2610ec 100644
--- a/lib/bq.py
+++ b/lib/bq.py
@@ -34,3 +34,7 @@ LS2 = lambda A, Q: ((1,     np.sqrt(A)/Q,   A),
                     (1,   1/np.sqrt(A)/Q, 1/A))
 HS2 = lambda A, Q: ((A,     np.sqrt(A)/Q,   1),
                     (1/A, 1/np.sqrt(A)/Q,   1))
+
+gen_filters = lambda cascade, srate: [
+    s2z(*f[1], fc=f[0], srate=srate, gain=10**(f[2]/20)) for f in cascade
+]