diff --git a/Providers/FreeSql.Provider.OracleOledb/OracleUS7AsciiAttribute.cs b/Providers/FreeSql.Provider.OracleOledb/OracleUS7AsciiAttribute.cs
index 4476c590c..05bca0e54 100644
--- a/Providers/FreeSql.Provider.OracleOledb/OracleUS7AsciiAttribute.cs
+++ b/Providers/FreeSql.Provider.OracleOledb/OracleUS7AsciiAttribute.cs
@@ -2,7 +2,7 @@
 
 namespace FreeSql.DataAnnotations
 {
-    [AttributeUsage(AttributeTargets.Class)]
+    [AttributeUsage(AttributeTargets.Property)]
     public class OracleUS7AsciiAttribute : Attribute
     {
         public OracleUS7AsciiAttribute() { }