diff --git a/tests/db_engine_specs/crate_tests.py b/tests/db_engine_specs/crate_tests.py
index 50cf511ea38..c385ea29a09 100644
--- a/tests/db_engine_specs/crate_tests.py
+++ b/tests/db_engine_specs/crate_tests.py
@@ -26,7 +26,9 @@ class TestCrateDbEngineSpec(TestDbEngineSpec):
         DB Eng Specs (crate): Test conversion to date time
         """
         dttm = self.get_dttm()
-        assert CrateEngineSpec.convert_dttm("TIMESTAMP", dttm) == "1546398245678.9"
+        assert CrateEngineSpec.convert_dttm("TIMESTAMP", dttm) == str(
+            dttm.timestamp() * 1000
+        )
 
     def test_epoch_to_dttm(self):
         """