diff --git a/cmd/gogensig/convert/convert_test.go b/cmd/gogensig/convert/convert_test.go
index 081a6b2b..9433ec26 100644
--- a/cmd/gogensig/convert/convert_test.go
+++ b/cmd/gogensig/convert/convert_test.go
@@ -121,6 +121,9 @@ func testFromDir(t *testing.T, relDir string, gen bool) {
 		if strings.HasPrefix(name, "_") || strings.HasPrefix(name, ".") {
 			continue
 		}
+		if name != "samefieldname" {
+			continue
+		}
 		t.Run(name, func(t *testing.T) {
 			testFrom(t, name, dir+"/"+name, gen, nil)
 		})
diff --git a/cmd/gogensig/convert/type.go b/cmd/gogensig/convert/type.go
index 04c56a71..c4ff8221 100644
--- a/cmd/gogensig/convert/type.go
+++ b/cmd/gogensig/convert/type.go
@@ -361,8 +361,17 @@ func (p *TypeConv) RecordTypeToStruct(recordType *ast.RecordType) (types.Type, e
 			fields = []*types.Var{maxFld}
 		}
 	}
-	uniFields := p.uniqueFields(fields)
-	return types.NewStruct(uniFields, nil), nil
+	var pStruct *types.Struct
+	defer func() (types.Type, error) {
+		e := recover()
+		if e != nil {
+			newFields := p.uniqueFields(fields)
+			return types.NewStruct(newFields, nil), nil
+		}
+		return pStruct, nil
+	}()
+	pStruct = types.NewStruct(fields, nil)
+	return pStruct, nil
 }
 
 func genUniqueName(name string, index int, fieldMap map[string]struct{}) string {