diff --git a/include/mruby/value.h b/include/mruby/value.h
index 6aa7c927e..057054463 100644
--- a/include/mruby/value.h
+++ b/include/mruby/value.h
@@ -94,12 +94,6 @@ struct mrb_state;
 # define MRB_PRIx PRIx32
 #endif
 
-#ifdef MRB_ENDIAN_BIG
-# define MRB_ENDIAN_LOHI(a,b) a b
-#else
-# define MRB_ENDIAN_LOHI(a,b) b a
-#endif
-
 MRB_API mrb_bool mrb_read_int(const char *p, const char *e, char **endp, mrb_int *np);
 /* obsolete; do not use mrb_int_read() */
 MRB_API mrb_int mrb_int_read(const char*, const char*, char**);