1 files changed, 2 insertions, 0 deletions

diff --git a/src/lj_def.h b/src/lj_def.h
index dadb8c0a..5d21d584 100644
--- a/src/lj_def.h
+++ b/src/lj_def.h
@@ -67,6 +67,8 @@ typedef unsigned int uintptr_t;
 #define LJ_MAX_IDXCHAIN 100             /* __index/__newindex chain limit. */
 #define LJ_STACK_EXTRA  5               /* Extra stack space (metamethods). */
 
+#define LJ_NUM_CBPAGE   1               /* Number of FFI callback pages. */
+
 /* Minimum table/buffer sizes. */
 #define LJ_MIN_GLOBAL   6               /* Min. global table size (hbits). */
 #define LJ_MIN_REGISTRY 2               /* Min. registry size (hbits). */