diff --git a/cdm_reader_mapper/data/__init__.py b/cdm_reader_mapper/data/__init__.py
index 68a47c36..0b3fbfc2 100755
--- a/cdm_reader_mapper/data/__init__.py
+++ b/cdm_reader_mapper/data/__init__.py
@@ -24,7 +24,7 @@ def test_icoads_r300_d701(self):
         """IMMA1 deck 701 test data."""
         return self._get_data_dict(
             "1845-04-01_subset.imma",
-            "icoads_r300_d701_type1",
+            "icoads_r300_d701",
         )
 
     @property