diff --git a/LDK/test/src/org/labkey/test/tests/external/labModules/LabModulesTest.java b/LDK/test/src/org/labkey/test/tests/external/labModules/LabModulesTest.java
index 7503a70a..42687997 100644
--- a/LDK/test/src/org/labkey/test/tests/external/labModules/LabModulesTest.java
+++ b/LDK/test/src/org/labkey/test/tests/external/labModules/LabModulesTest.java
@@ -1444,8 +1444,8 @@ private void samplesTableTest() throws Exception
             List<List<String>> lines = ExcelHelper.getFirstNRows(sheet, 5);
 
             Assert.assertEquals(columnLabels, lines.get(0));
-            Assert.assertEquals(rows.get(0), lines.get(1));
-            Assert.assertEquals(rows.get(0), lines.get(2));
+            Assert.assertEquals("Row did not match. ExcelHelper pattern: " + ExcelHelper.getDateTimeFormat().toPattern(), rows.get(0), lines.get(1));
+            Assert.assertEquals("Row did not match. ExcelHelper pattern: " + ExcelHelper.getDateTimeFormat().toPattern(), rows.get(0), lines.get(2));
             Assert.assertEquals(rows.get(1), lines.get(3));
             Assert.assertEquals(rows.get(1), lines.get(4));
         }