diff --git a/src/northbridge/amd/agesa/family12/dimmSpd.c b/src/northbridge/amd/agesa/family12/dimmSpd.c
index 3ac4d7d638..e8ef02a5b7 100644
--- a/src/northbridge/amd/agesa/family12/dimmSpd.c
+++ b/src/northbridge/amd/agesa/family12/dimmSpd.c
@@ -27,14 +27,13 @@
  *
  ***************************************************************************/
 
+#include <stdlib.h>
 #include "Porting.h"
 #include "AGESA.h"
 #include "amdlib.h"
 
 #include <northbridge/amd/agesa/dimmSpd.h>
 
-#define DIMENSION(array)(sizeof (array)/ sizeof (array [0]))
-
 typedef struct _DIMM_INFO_SMBUS{
   UINT8   SocketId;
   UINT8   MemChannelId;
@@ -60,7 +59,7 @@ AmdMemoryReadSPD (
 {
    UINT8  SmBusAddress = 0;
    UINTN  Index;
-   UINTN  MaxSocket = DIMENSION (SpdAddrLookup);
+   UINTN  MaxSocket = ARRAY_SIZE(SpdAddrLookup);
    for (Index = 0; Index < MaxSocket; Index ++){
      if ((SpdData->SocketId     == SpdAddrLookup[Index].SocketId)     &&
          (SpdData->MemChannelId == SpdAddrLookup[Index].MemChannelId) &&