diff --git a/src/mame/drivers/retofinv.cpp b/src/mame/drivers/retofinv.cpp
index 017578e0e1b..201543b2636 100644
--- a/src/mame/drivers/retofinv.cpp
+++ b/src/mame/drivers/retofinv.cpp
@@ -6,7 +6,16 @@ Return of the Invaders
 
 driver by Jarek Parchanski, Andrea Mazzoleni
 
-the game was developed by UPL for Taito.
+UPL is said to have developed Return of the Invaders for Taito, but some digging
+in the ROMs reveals the following strings:
+
+　Programed by NAKAKUMA AKIRA
+　V 1.0 (85.3.15)
+
+　NOBUO KODERA
+　AKIRA NAKAKUMA
+　HIKARU KASAHARA
+　COMIX LTD. 1985.
 
 Notes:
 - I derived the ROM names from the board diagram in the manual. There might