diff --git a/tests/test_tiingo.py b/tests/test_tiingo.py
index 0d0da23..9d920c2 100644
--- a/tests/test_tiingo.py
+++ b/tests/test_tiingo.py
@@ -6,7 +6,7 @@ from unittest import TestCase
 import vcr
 
 from tiingo import TiingoClient
-from tiingo.api import InvalidFrequencyError
+from tiingo.exceptions import InvalidFrequencyError
 from tiingo.restclient import RestClientError
 
 
diff --git a/tests/test_tiingo_pandas.py b/tests/test_tiingo_pandas.py
index 54ed91e..7d22ba7 100644
--- a/tests/test_tiingo_pandas.py
+++ b/tests/test_tiingo_pandas.py
@@ -4,7 +4,7 @@
 import vcr
 from unittest import TestCase
 from tiingo import TiingoClient
-from tiingo.api import APIColumnNameError, InstallPandasException
+from tiingo.exceptions import APIColumnNameError, InstallPandasException, MissingRequiredArgumentError
 try:
     import pandas as pd
     pandas_is_installed = True
@@ -69,6 +69,10 @@ class TestTiingoWithPython(TestCase):
             self._client.get_dataframe(['GOOGL', 'AAPL'], startDate='2018-01-05',
                                                 endDate='2018-01-19', metric_name='xopen', frequency='weekly')
 
+    def test_metric_name_missing_when_multiple_tickers(self):
+        with self.assertRaises(MissingRequiredArgumentError):
+            self._client.get_dataframe(['GOOGL', 'AAPL'], frequency='weekly')
+
     @vcr.use_cassette('tests/fixtures/ticker_price_pandas_single.yaml')
     def test_pandas_edge_case(self):
         """Test single price/date being returned as a frame"""