diff --git a/FreeSql/Extensions/FreeSqlGlobalExpressionCallExtensions.cs b/FreeSql/Extensions/FreeSqlGlobalExpressionCallExtensions.cs
index 901895f70..a7ac772ed 100644
--- a/FreeSql/Extensions/FreeSqlGlobalExpressionCallExtensions.cs
+++ b/FreeSql/Extensions/FreeSqlGlobalExpressionCallExtensions.cs
@@ -77,7 +77,7 @@ public static class FreeSqlGlobalExpressionCallExtensions
     /// </summary>
     public static bool In<T>(this T field, T value1)
     {
-        if (expContext.Value == null) return field.Equals(value1);
+        if (expContext.Value == null) return object.Equals(field, value1);
         expContext.Value.Result = $"{pc["field"]} = {pc["value1"]}";
         return true;
     }
@@ -86,7 +86,7 @@ public static class FreeSqlGlobalExpressionCallExtensions
     /// </summary>
     public static bool In<T>(this T field, T value1, T value2)
     {
-        if (expContext.Value == null) return field.Equals(value1) || field.Equals(value2);
+        if (expContext.Value == null) return object.Equals(field, value1) || object.Equals(field, value2);
         expContext.Value.Result = $"{pc["field"]} IN ({pc["value1"]},{pc["value2"]})";
         return true;
     }
@@ -95,7 +95,7 @@ public static class FreeSqlGlobalExpressionCallExtensions
     /// </summary>
     public static bool In<T>(this T field, T value1, T value2, T value3)
     {
-        if (expContext.Value == null) return field.Equals(value1) || field.Equals(value2) || field.Equals(value3);
+        if (expContext.Value == null) return object.Equals(field, value1) || object.Equals(field, value2) || object.Equals(field, value3);
         expContext.Value.Result = $"{pc["field"]} IN ({pc["value1"]},{pc["value2"]},{pc["value3"]})";
         return true;
     }
@@ -104,7 +104,7 @@ public static class FreeSqlGlobalExpressionCallExtensions
     /// </summary>
     public static bool In<T>(this T field, T value1, T value2, T value3, T value4)
     {
-        if (expContext.Value == null) return field.Equals(value1) || field.Equals(value2) || field.Equals(value3) || field.Equals(value4);
+        if (expContext.Value == null) return object.Equals(field, value1) || object.Equals(field, value2) || object.Equals(field, value3) || object.Equals(field, value4);
         expContext.Value.Result = $"{pc["field"]} IN ({pc["value1"]},{pc["value2"]},{pc["value3"]},{pc["value4"]})";
         return true;
     }
@@ -113,7 +113,7 @@ public static class FreeSqlGlobalExpressionCallExtensions
     /// </summary>
     public static bool In<T>(this T field, T value1, T value2, T value3, T value4, T value5)
     {
-        if (expContext.Value == null) return field.Equals(value1) || field.Equals(value2) || field.Equals(value3) || field.Equals(value4) || field.Equals(value5);
+        if (expContext.Value == null) return object.Equals(field, value1) || object.Equals(field, value2) || object.Equals(field, value3) || object.Equals(field, value4) || object.Equals(field, value5);
         expContext.Value.Result = $"{pc["field"]} IN ({pc["value1"]},{pc["value2"]},{pc["value3"]},{pc["value4"]},{pc["value5"]})";
         return true;
     }