diff --git a/engine.go b/engine.go
index 2499d494..6f7c3a32 100644
--- a/engine.go
+++ b/engine.go
@@ -481,7 +481,9 @@ func (engine *Engine) mapType(v reflect.Value) *Table {
 	table := engine.newTable()
 	method := v.MethodByName("TableName")
 	if !method.IsValid() {
-		method = v.Addr().MethodByName("TableName")
+		if v.CanAddr() {
+			method = v.Addr().MethodByName("TableName")
+		}
 	}
 	if method.IsValid() {
 		params := []reflect.Value{}