diff --git a/influxdb/helper.py b/influxdb/helper.py
index e622526d..760c6006 100644
--- a/influxdb/helper.py
+++ b/influxdb/helper.py
@@ -154,6 +154,8 @@ def _json_body_(cls):
         :return: JSON body of these datapoints.
         """
         json = []
+        if not cls.__initialized__:
+            cls._reset_()
         for series_name, data in six.iteritems(cls._datapoints):
             for point in data:
                 json_point = {
diff --git a/influxdb/influxdb08/helper.py b/influxdb/influxdb08/helper.py
index f3dec33c..5f2d4614 100644
--- a/influxdb/influxdb08/helper.py
+++ b/influxdb/influxdb08/helper.py
@@ -139,6 +139,8 @@ def _json_body_(cls):
         :return: JSON body of the datapoints.
         """
         json = []
+        if not cls.__initialized__:
+            cls._reset_()
         for series_name, data in six.iteritems(cls._datapoints):
             json.append({'name': series_name,
                          'columns': cls._fields,
diff --git a/influxdb/tests/helper_test.py b/influxdb/tests/helper_test.py
index 6f24e85d..a73dd5df 100644
--- a/influxdb/tests/helper_test.py
+++ b/influxdb/tests/helper_test.py
@@ -47,6 +47,14 @@ class Meta:
 
         TestSeriesHelper.MySeriesHelper = MySeriesHelper
 
+    def setUp(self):
+        """Check that MySeriesHelper has empty datapoints."""
+        super(TestSeriesHelper, self).setUp()
+        self.assertEqual(
+            TestSeriesHelper.MySeriesHelper._json_body_(),
+            [],
+            'Resetting helper in teardown did not empty datapoints.')
+
     def tearDown(self):
         """Deconstruct the TestSeriesHelper object."""
         super(TestSeriesHelper, self).tearDown()