1 files changed, 3 insertions, 0 deletions

diff --git a/src/lj_carith.h b/src/lj_carith.h
index 6870172b..14073603 100644
--- a/src/lj_carith.h
+++ b/src/lj_carith.h
@@ -12,6 +12,9 @@
 
 LJ_FUNC int lj_carith_op(lua_State *L, MMS mm);
 
+#if LJ_32
+LJ_FUNC int64_t lj_carith_mul64(int64_t x, int64_t k);
+#endif
 LJ_FUNC uint64_t lj_carith_powu64(uint64_t x, uint64_t k);
 LJ_FUNC int64_t lj_carith_powi64(int64_t x, int64_t k);