diff --git a/source/libs/tdb/src/inc/tdbPage.h b/source/libs/tdb/src/inc/tdbPage.h
index e85660ab33cf0414708c8586a9f45ebd26de807e..be412e635c93fd1f4627132b75de011a3b757995 100644
--- a/source/libs/tdb/src/inc/tdbPage.h
+++ b/source/libs/tdb/src/inc/tdbPage.h
@@ -31,7 +31,7 @@ typedef struct __attribute__((__packed__)) {
 
 struct SPage {
   pthread_spinlock_t lock;
-  void              *pData;
+  u8                *pData;
   SPgid              pgid;
 
   // Fields used by SPCache
@@ -49,6 +49,10 @@ struct SPage {
   int       aiOvfl[4];
 };
 
+// Macros
+#define TDB_PAGE_CELL_IDX_AT(pPage, idx) ((pPage)->aCellIdx[idx])
+#define TDB_PAGE_CELL_AT(pPage, idx)     ((pPage)->pData + TDB_PAGE_CELL_IDX_AT(pPage, idx))
+
 // For page lock
 #define P_LOCK_SUCC 0
 #define P_LOCK_BUSY 1