diff --git a/src/mame/machine/segaic16.c b/src/mame/machine/segaic16.c
index 5c06a6301b8..453b4356909 100644
--- a/src/mame/machine/segaic16.c
+++ b/src/mame/machine/segaic16.c
@@ -17,7 +17,7 @@
  *
  *************************************/
 
-#define LOG_MEMORY_MAP	(1)
+#define LOG_MEMORY_MAP	(0)
 #define LOG_MULTIPLY	(0)
 #define LOG_DIVIDE		(0)
 #define LOG_COMPARE		(0)