diff --git a/src/burn/drv/neogeo/neo_upd4990a.cpp b/src/burn/drv/neogeo/neo_upd4990a.cpp
index 6c38d5ded..7831453bd 100644
--- a/src/burn/drv/neogeo/neo_upd4990a.cpp
+++ b/src/burn/drv/neogeo/neo_upd4990a.cpp
@@ -141,6 +141,7 @@ void uPD4990AScan(INT32 nAction, INT32* pnMin)
 		}
 
 		SCAN_VAR(uPD4990A);
+		SCAN_VAR(nOneSecond);
 	}
 }