diff --git a/server/extension/sql/80_isolines_helper.sql b/server/extension/sql/80_isolines_helper.sql
index f0e4e57..43ff444 100644
--- a/server/extension/sql/80_isolines_helper.sql
+++ b/server/extension/sql/80_isolines_helper.sql
@@ -91,10 +91,11 @@ RETURNS SETOF cdb_dataservices_server.isoline AS $$
     else:
       source_str = None
 
+    # -- TODO Support options properly
     if isotype == 'isodistance':
-      resp = client.calculate_isodistance(source_str, mode, data_range, options)
+      resp = client.calculate_isodistance(source_str, mode, data_range)
     elif isotype == 'isochrone':
-      resp = client.calculate_isochrone(source_str, mode, data_range, options)
+      resp = client.calculate_isochrone(source_str, mode, data_range)
 
     if resp:
       result = []
@@ -114,7 +115,7 @@ RETURNS SETOF cdb_dataservices_server.isoline AS $$
     type_, value_, traceback_ = sys.exc_info()
     #quota_service.increment_failed_service_use()
     error_msg = 'There was an error trying to obtain isolines using mapzen: {0}'.format(e)
-    #plpy.notice(traceback.format_tb(traceback_))
+    plpy.debug(traceback.format_tb(traceback_))
     raise e
     #plpy.error(error_msg)
   finally:
diff --git a/server/lib/python/cartodb_services/cartodb_services/mapzen/isolines.py b/server/lib/python/cartodb_services/cartodb_services/mapzen/isolines.py
index 2aaa585..1d2a814 100644
--- a/server/lib/python/cartodb_services/cartodb_services/mapzen/isolines.py
+++ b/server/lib/python/cartodb_services/cartodb_services/mapzen/isolines.py
@@ -60,7 +60,14 @@ class MapzenIsolines:
             destination_matrix = self._calculate_destination_matrix(origin, destination_points, mode, units)
 
     def _calculate_radius(self, init_radius, mode, mode_type, units):
+        import logging
+        #logging.basicConfig(filename='/tmp/isolines.log',level=logging.DEBUG)
+        logging.debug(mode_type)
         if mode_type is 'time':
+            logging.debug(init_radius)
+            logging.debug(self.METERS_PER_SECOND[mode])
+            logging.debug("units = %s", units)
+            logging.debug(self.UNIT_MULTIPLIER[units])
             radius_meters = init_radius * self.METERS_PER_SECOND[mode] * self.UNIT_MULTIPLIER[units]
         else:
             radius_meters = init_radius