diff --git a/Extensions/FreeSql.Generator/FreeSql.Generator.csproj b/Extensions/FreeSql.Generator/FreeSql.Generator.csproj
index a1747bac..222b8e28 100644
--- a/Extensions/FreeSql.Generator/FreeSql.Generator.csproj
+++ b/Extensions/FreeSql.Generator/FreeSql.Generator.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFrameworks>netcoreapp3.1;netcoreapp3.0;netcoreapp2.2;netcoreapp2.1</TargetFrameworks>
+    <TargetFrameworks>netcoreapp3.1;netcoreapp2.1</TargetFrameworks>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
     <IsPackable>true</IsPackable>
     <PackAsTool>true</PackAsTool>
diff --git a/Extensions/FreeSql.Generator/RazorContentManager.cs b/Extensions/FreeSql.Generator/RazorContentManager.cs
index 9773795b..e881aa80 100644
--- a/Extensions/FreeSql.Generator/RazorContentManager.cs
+++ b/Extensions/FreeSql.Generator/RazorContentManager.cs
@@ -161,7 +161,7 @@ namespace @gen.NameSpace {
 			@:if (_@csname == value) return;
 			@:_@csname = value;
 			foreach (var fkcok2 in findfks) {
-			@:@GetFkObjectName(fkcok2) = null;
+			@:@gen.GetCsName(GetFkObjectName(fkcok2)) = null;
 			}
 		@:} }
 		@:private @gen.GetCsType(col) _@csname;