diff --git a/src/emu/cpu/m68000/m68kmame.c b/src/emu/cpu/m68000/m68kmame.c
index cb557102bc7..f7fa78a5c8c 100644
--- a/src/emu/cpu/m68000/m68kmame.c
+++ b/src/emu/cpu/m68000/m68kmame.c
@@ -630,7 +630,7 @@ void m68008_get_info(UINT32 state, cpuinfo *info)
 	switch (state)
 	{
 		/* --- the following bits of info are returned as 64-bit signed integers --- */
-		case CPUINFO_INT_CONTEXT_SIZE:					info->i = sizeof(void *);				break;
+		case CPUINFO_INT_CONTEXT_SIZE:					info->i = sizeof(m68ki_cpu_core);		break;
 		case CPUINFO_INT_INPUT_LINES:					info->i = 8;							break;
 		case CPUINFO_INT_DEFAULT_IRQ_VECTOR:			info->i = -1;							break;
 		case CPUINFO_INT_ENDIANNESS:					info->i = CPU_IS_BE;					break;
@@ -866,7 +866,7 @@ void m68020_get_info(UINT32 state, cpuinfo *info)
 	switch (state)
 	{
 		/* --- the following bits of info are returned as 64-bit signed integers --- */
-		case CPUINFO_INT_CONTEXT_SIZE:					info->i = sizeof(void *);				break;
+		case CPUINFO_INT_CONTEXT_SIZE:					info->i = sizeof(m68ki_cpu_core);		break;
 		case CPUINFO_INT_INPUT_LINES:					info->i = 8;							break;
 		case CPUINFO_INT_DEFAULT_IRQ_VECTOR:			info->i = -1;							break;
 		case CPUINFO_INT_ENDIANNESS:					info->i = CPU_IS_BE;					break;
@@ -1108,7 +1108,7 @@ void m68040_get_info(UINT32 state, cpuinfo *info)
 	switch (state)
 	{
 		/* --- the following bits of info are returned as 64-bit signed integers --- */
-		case CPUINFO_INT_CONTEXT_SIZE:					info->i = sizeof(void *);				break;
+		case CPUINFO_INT_CONTEXT_SIZE:					info->i = sizeof(m68ki_cpu_core);		break;
 		case CPUINFO_INT_INPUT_LINES:					info->i = 8;							break;
 		case CPUINFO_INT_DEFAULT_IRQ_VECTOR:			info->i = -1;							break;
 		case CPUINFO_INT_ENDIANNESS:					info->i = CPU_IS_BE;					break;