diff --git a/src/lj_dispatch.h b/src/lj_dispatch.h
index 52762eea..e81794ac 100644
--- a/src/lj_dispatch.h
+++ b/src/lj_dispatch.h
@@ -144,6 +144,7 @@ LJ_FUNCA void LJ_FASTCALL lj_dispatch_stitch(jit_State *J, const BCIns *pc);
 LJ_FUNCA void LJ_FASTCALL lj_dispatch_profile(lua_State *L, const BCIns *pc);
 #endif
 
+#if !defined(ERRNO_SAVE) && !defined(ERRNO_RESTORE)
 #if LJ_HASFFI && !defined(_BUILDVM_H)
 /* Save/restore errno and GetLastError() around hooks, exits and recording. */
 #include <errno.h>
@@ -160,5 +161,6 @@ LJ_FUNCA void LJ_FASTCALL lj_dispatch_profile(lua_State *L, const BCIns *pc);
 #define ERRNO_SAVE
 #define ERRNO_RESTORE
 #endif
+#endif
 
 #endif