1 files changed, 1 insertions, 0 deletions

diff --git a/src/lj_carith.h b/src/lj_carith.h
index 67d976bf..3b0a5dd7 100644
--- a/src/lj_carith.h
+++ b/src/lj_carith.h
@@ -11,6 +11,7 @@
 #if LJ_HASFFI
 
 LJ_FUNC int lj_carith_op(lua_State *L, MMS mm);
+LJ_FUNC int lj_carith_len(lua_State *L);
 
 #if LJ_32
 LJ_FUNC uint64_t lj_carith_shl64(uint64_t x, int32_t sh);