diff --git a/src/NHibernate.Test/Async/NHSpecificTest/GH1300/Fixture.cs b/src/NHibernate.Test/Async/NHSpecificTest/GH1300/Fixture.cs
index 3ead1a0369d..790834cdc9f 100644
--- a/src/NHibernate.Test/Async/NHSpecificTest/GH1300/Fixture.cs
+++ b/src/NHibernate.Test/Async/NHSpecificTest/GH1300/Fixture.cs
@@ -114,7 +114,9 @@ public void InsertWithTooLongValuesShouldThrowAsync()
 
 				var sqlEx = ex.InnerException as SqlException;
 				Assert.That(sqlEx, Is.Not.Null);
-				Assert.That(sqlEx.Number, Is.EqualTo(8152));
+				// Error code is different if verbose truncation warning is enabled
+				// See details: https://www.brentozar.com/archive/2019/03/how-to-fix-the-error-string-or-binary-data-would-be-truncated/
+				Assert.That(sqlEx.Number, Is.EqualTo(8152).Or.EqualTo(2628));
 			}
 		}
 
diff --git a/src/NHibernate.Test/NHSpecificTest/GH1300/Fixture.cs b/src/NHibernate.Test/NHSpecificTest/GH1300/Fixture.cs
index 8f994c19117..690d5e9eb6c 100644
--- a/src/NHibernate.Test/NHSpecificTest/GH1300/Fixture.cs
+++ b/src/NHibernate.Test/NHSpecificTest/GH1300/Fixture.cs
@@ -103,7 +103,9 @@ public void InsertWithTooLongValuesShouldThrow()
 
 				var sqlEx = ex.InnerException as SqlException;
 				Assert.That(sqlEx, Is.Not.Null);
-				Assert.That(sqlEx.Number, Is.EqualTo(8152));
+				// Error code is different if verbose truncation warning is enabled
+				// See details: https://www.brentozar.com/archive/2019/03/how-to-fix-the-error-string-or-binary-data-would-be-truncated/
+				Assert.That(sqlEx.Number, Is.EqualTo(8152).Or.EqualTo(2628));
 			}
 		}