diff --git a/bin/weewx/tags.py b/bin/weewx/tags.py
index 64463d5d..a9768817 100644
--- a/bin/weewx/tags.py
+++ b/bin/weewx/tags.py
@@ -168,40 +168,40 @@ class TimespanBinder(object):
         self.option_dict = option_dict
 
     # Iterate over all records in the time period:
-    def records(self, data_binding=None):
-        manager = self.db_lookup(data_binding)
+    def records(self):
+        manager = self.db_lookup(self.data_binding)
         for record in manager.genBatchRecords(self.timespan.start, self.timespan.stop):
-            yield CurrentObj(self.db_lookup, None, record['dateTime'], self.formatter, 
+            yield CurrentObj(self.db_lookup, self.data_binding, record['dateTime'], self.formatter,
                              self.converter, record=record)
 
     # Iterate over custom span
-    def spans(self, data_binding=None, context='day', interval=10800):
+    def spans(self, context='day', interval=10800):
         for span in weeutil.weeutil.intervalgen(self.timespan.start, self.timespan.stop, interval):
-            yield TimespanBinder(span, self.db_lookup, data_binding,
+            yield TimespanBinder(span, self.db_lookup, self.data_binding,
                                  context, self.formatter, self.converter, **self.option_dict)
     
     # Iterate over hours in the time period:
-    def hours(self, data_binding=None):
+    def hours(self):
         return TimespanBinder._seqGenerator(weeutil.weeutil.genHourSpans, self.timespan,
-                                            self.db_lookup, data_binding,
+                                            self.db_lookup, self.data_binding,
                                             'hour', self.formatter, self.converter, **self.option_dict)
 
     # Iterate over days in the time period:
-    def days(self, data_binding=None):
+    def days(self):
         return TimespanBinder._seqGenerator(weeutil.weeutil.genDaySpans, self.timespan,
-                                            self.db_lookup, data_binding,
+                                            self.db_lookup, self.data_binding,
                                             'day', self.formatter, self.converter, **self.option_dict)
 
     # Iterate over months in the time period:
-    def months(self, data_binding=None):
+    def months(self):
         return TimespanBinder._seqGenerator(weeutil.weeutil.genMonthSpans, self.timespan,
-                                            self.db_lookup, data_binding,
+                                            self.db_lookup, self.data_binding,
                                             'month', self.formatter, self.converter, **self.option_dict)
 
     # Iterate over years in the time period:
-    def years(self, data_binding=None):
+    def years(self):
         return TimespanBinder._seqGenerator(weeutil.weeutil.genYearSpans, self.timespan,
-                                            self.db_lookup, data_binding,
+                                            self.db_lookup, self.data_binding,
                                             'year', self.formatter, self.converter, **self.option_dict)
 
     # Static method used to implement the iteration:
diff --git a/docs/changes.txt b/docs/changes.txt
index 2c2ac3ce..5dc23eb4 100644
--- a/docs/changes.txt
+++ b/docs/changes.txt
@@ -41,6 +41,9 @@ Fixes issue #343.
 Fixed a bug that caused a divide-by-zero error if a plot range was the same as
 a specified min or max scale. Fixes issue #344.
 
+Fixed bug that prevented an optional data_binding from being used in tags
+when iterating over records. Fixes issue #345.
+
 
 3.8.3 MM/DD/YYYY