diff --git a/src/mame/pinball/inder.cpp b/src/mame/pinball/inder.cpp
index 6a60125c47d..3d92e2dbe58 100644
--- a/src/mame/pinball/inder.cpp
+++ b/src/mame/pinball/inder.cpp
@@ -1597,7 +1597,7 @@ ROM_END
 / sent a letter (dated June 1990) with an updated program ROM and
 / recalling the buggy one. It is unclear if the supported set is the
 / fixed or the older one, as it matches one dumped from an EEPROM
-/ with an original Inder label dated 18-June-1990.
+/ with an original Inder label dated 18-April-1990.
 /-------------------------------------------------------------------*/
 ROM_START(mundial)
 	ROM_REGION(0x4000, "maincpu", ROMREGION_ERASEFF)