diff --git a/couchbase/fulltext.py b/couchbase/fulltext.py
index ea85795be..794ababe6 100644
--- a/couchbase/fulltext.py
+++ b/couchbase/fulltext.py
@@ -668,7 +668,7 @@ class PrefixQuery(_SingleQuery):
     most useful for type-ahead or lookup queries.
     """
     _TERMPROP = 'prefix'
-    prefix = _genprop(str, 'prefix', doc='The prefix to match')
+    prefix = _genprop_str('prefix', doc='The prefix to match')
 
 
 @_with_fields('field')
@@ -694,7 +694,7 @@ def __init__(self, distance, location, **kwargs):
         super(GeoDistanceQuery, self).__init__()
         kwargs['distance'] = distance
         kwargs['location'] = location
-        _assign_kwargs(self, **kwargs)
+        _assign_kwargs(self, kwargs)
 
     location = _genprop(_location_conv, 'location', doc='Location')
     distance = _genprop_str('distance')
@@ -706,7 +706,7 @@ def __init__(self, top_left, bottom_right, **kwargs):
         super(GeoBoundingBoxQuery, self).__init__()
         kwargs['top_left'] = top_left
         kwargs['bottom_right'] = bottom_right
-        _assign_kwargs(self, **kwargs)
+        _assign_kwargs(self, kwargs)
 
     top_left = _genprop(
         _location_conv, 'top_left',