diff --git a/include/mem.h b/include/mem.h
index 12a316e7..b459ef32 100644
--- a/include/mem.h
+++ b/include/mem.h
@@ -33,12 +33,11 @@ typedef void (*MEMORY_WriteHandler)(PhysPt pt,Bit8u val);
 #define PAGE_SIZE (PAGE_KB*1024)
 #define PAGE_SHIFT 14
 #define PAGE_COUNT(A) (A & ((1 << PAGE_SHIFT)-1) ? 1+(A >> PAGE_SHIFT) : (A >> PAGE_SHIFT) )
-#define MAX_PAGES PAGE_COUNT(C_MEM_MAX_SIZE*1024*1024)
 
-extern HostPt ReadHostTable[MAX_PAGES];
-extern HostPt WriteHostTable[MAX_PAGES];
-extern MEMORY_ReadHandler ReadHandlerTable[MAX_PAGES];
-extern MEMORY_WriteHandler WriteHandlerTable[MAX_PAGES];
+extern HostPt ReadHostTable[];
+extern HostPt WriteHostTable[];
+extern MEMORY_ReadHandler ReadHandlerTable[];
+extern MEMORY_WriteHandler WriteHandlerTable[];
 
 
 INLINE Bit16u PAGES(Bit32u bytes) {