diff --git a/src/NHibernate/Mapping/ByCode/Impl/CustomizersImpl/ClassCustomizer.cs b/src/NHibernate/Mapping/ByCode/Impl/CustomizersImpl/ClassCustomizer.cs
index c4693e43898..02683e29638 100644
--- a/src/NHibernate/Mapping/ByCode/Impl/CustomizersImpl/ClassCustomizer.cs
+++ b/src/NHibernate/Mapping/ByCode/Impl/CustomizersImpl/ClassCustomizer.cs
@@ -117,9 +117,9 @@ public void Table(string tableName)
 			CustomizersHolder.AddCustomizer(typeof(TEntity), (IClassMapper m) => m.Table(tableName));
 		}
 
-		public void Check(string tableName)
+		public void Check(string check)
 		{
-			CustomizersHolder.AddCustomizer(typeof(TEntity), (IClassMapper m) => m.Check(tableName));
+			CustomizersHolder.AddCustomizer(typeof(TEntity), (IClassMapper m) => m.Check(check));
 		}
 
 		public void Catalog(string catalogName)