diff --git a/eispac/tests/test_eismap.py b/eispac/tests/test_eismap.py
index 58a5373..b41f2bb 100644
--- a/eispac/tests/test_eismap.py
+++ b/eispac/tests/test_eismap.py
@@ -1,7 +1,6 @@
 """
 Tests for `eispac.EISMap`
 """
-import copy
 from textwrap import dedent
 
 import numpy as np
@@ -116,7 +115,7 @@ def test_date_is_date_start(test_eis_map):
 
 def test_reference_date_is_date_start(test_eis_map):
     "Test that the reference date is the time at the beginning of the raster"
-    assert test_eis_map.reference_date == test_eis_map.date_start == Time(test_eis_map.wcs.dateavg)
+    assert test_eis_map.reference_date == test_eis_map.date_start
 
 
 def test_plot_settings(test_eis_map):