diff --git a/holodeck/host_relations.py b/holodeck/host_relations.py
index fed48c0b..b1c107f1 100644
--- a/holodeck/host_relations.py
+++ b/holodeck/host_relations.py
@@ -843,7 +843,7 @@ def mbh_from_mbulge(self, mbulge, redz, scatter):
         # NOTE: this will work for (N,) ==> (N,)    or   (N,) ==> (N,X)
         try:
             redz = np.broadcast_to(redz, mbulge.T.shape).T
-        except TypeError:
+        except:
             redz = redz
         zmamp = self._mamp * (1.0 + redz)**self._zplaw
         mbh = _log10_relation(mbulge, zmamp, self._mplaw, scatter_dex, x0=self._mref)
diff --git a/holodeck/sams/sam.py b/holodeck/sams/sam.py
index 3f691459..f8761dbc 100644
--- a/holodeck/sams/sam.py
+++ b/holodeck/sams/sam.py
@@ -358,7 +358,7 @@ def static_binary_density(self):
             # ==> (dMstar-tot/dMbh-tot) = (dMstar-pri / dMbh-pri) * (dMbh-pri/dMbh-tot) / (dMstar-pri / dMstar-tot)
             #                           = (dMstar-pri / dMbh-pri) * (1 / (1+q_bh)) / (1 / (1+q_star))
             #                           = (dMstar-pri / dMbh-pri) * ((1+q_star) / (1+q_bh))
-            dmstar_dmbh_pri = self._mmbulge.dmstar_dmbh(mstar_pri)   # [unitless]
+            dmstar_dmbh_pri = self._mmbulge.dmstar_dmbh(mstar_pri, redz=redz)   # [unitless]
             qterm = (1.0 + mstar_rat) / (1.0 + self.mrat[np.newaxis, :, np.newaxis])
             dmstar_dmbh = dmstar_dmbh_pri * qterm