diff --git a/Src/Asp.Net/SqlSugar/ExpressionsToSql/Common/SugarParameter.cs b/Src/Asp.Net/SqlSugar/ExpressionsToSql/Common/SugarParameter.cs
index c8096140c..6b3adabb6 100644
--- a/Src/Asp.Net/SqlSugar/ExpressionsToSql/Common/SugarParameter.cs
+++ b/Src/Asp.Net/SqlSugar/ExpressionsToSql/Common/SugarParameter.cs
@@ -129,7 +129,7 @@ namespace SqlSugar
             {
                 this.DbType = System.Data.DbType.Time;
             }
-            else if (type.Name=="Geometry")
+            else if (type?.Name=="Geometry")
             {
                 this.DbType = System.Data.DbType.Object;
             }