diff --git a/include/mruby/dump.h b/include/mruby/dump.h
index a976deef0..863f22649 100644
--- a/include/mruby/dump.h
+++ b/include/mruby/dump.h
@@ -24,6 +24,8 @@ MRB_BEGIN_DECL
 #ifndef MRB_NO_STDIO
 MRB_API mrb_value mrb_load_irep_file(mrb_state*,FILE*);
 MRB_API mrb_value mrb_load_irep_file_cxt(mrb_state*, FILE*, mrbc_context*);
+mrb_irep *mrb_read_irep_file(mrb_state*, FILE*);
+int mrb_dump_irep_binary(mrb_state*, const mrb_irep*, uint8_t, FILE*);
 #endif
 /* avoid mrb_read_irep(); use mrb_read_irep_buf() instead (may cause buffer overflow) */
 MRB_API mrb_irep *mrb_read_irep(mrb_state*, const uint8_t*);
diff --git a/include/mruby/internal.h b/include/mruby/internal.h
index be71f0799..d60675f61 100644
--- a/include/mruby/internal.h
+++ b/include/mruby/internal.h
@@ -32,10 +32,8 @@ uint32_t mrb_packed_int_decode(const uint8_t *p, const uint8_t **newpos);
 #ifdef MRUBY_IREP_H
 int mrb_dump_irep(mrb_state *mrb, const mrb_irep *irep, uint8_t flags, uint8_t **bin, size_t *bin_size);
 #ifndef MRB_NO_STDIO
-int mrb_dump_irep_binary(mrb_state*, const mrb_irep*, uint8_t, FILE*);
 int mrb_dump_irep_cfunc(mrb_state *mrb, const mrb_irep*, uint8_t flags, FILE *f, const char *initname);
 int mrb_dump_irep_cstruct(mrb_state *mrb, const mrb_irep*, uint8_t flags, FILE *f, const char *initname);
-mrb_irep *mrb_read_irep_file(mrb_state*, FILE*);
 #endif
 #endif
 
@@ -61,9 +59,6 @@ void mrb_gc_free_hash(mrb_state*, struct RHash*);
 struct mrb_insn_data mrb_decode_insn(const mrb_code *pc);
 #ifdef MRUBY_IREP_H
 void mrb_irep_free(mrb_state*, struct mrb_irep*);
-void mrb_irep_incref(mrb_state*, struct mrb_irep*);
-void mrb_irep_decref(mrb_state*, struct mrb_irep*);
-void mrb_irep_cutref(mrb_state*, struct mrb_irep*);
 void mrb_irep_remove_lv(mrb_state *mrb, mrb_irep *irep);
 
 static inline const struct mrb_irep_catch_handler *
@@ -102,7 +97,6 @@ mrb_value mrb_rational_div(mrb_state *mrb, mrb_value x, mrb_value y);
 #endif
 
 #ifdef MRUBY_PROC_H
-struct RProc *mrb_proc_new(mrb_state*, const mrb_irep*);
 struct RProc *mrb_closure_new(mrb_state*, const mrb_irep*);
 void mrb_proc_copy(mrb_state *mrb, struct RProc *a, struct RProc *b);
 mrb_int mrb_proc_arity(const struct RProc *p);
diff --git a/include/mruby/irep.h b/include/mruby/irep.h
index 9957c98d2..9c80bd198 100644
--- a/include/mruby/irep.h
+++ b/include/mruby/irep.h
@@ -123,6 +123,10 @@ struct mrb_insn_data {
 #define mrb_irep_catch_handler_pack(n, v)   uint32_to_bin(n, v)
 #define mrb_irep_catch_handler_unpack(v)    bin_to_uint32(v)
 
+void mrb_irep_incref(mrb_state*, struct mrb_irep*);
+void mrb_irep_decref(mrb_state*, struct mrb_irep*);
+void mrb_irep_cutref(mrb_state*, struct mrb_irep*);
+
 MRB_END_DECL
 
 #endif  /* MRUBY_IREP_H */
diff --git a/include/mruby/proc.h b/include/mruby/proc.h
index 97ae48e96..9d197f48a 100644
--- a/include/mruby/proc.h
+++ b/include/mruby/proc.h
@@ -88,6 +88,7 @@ struct RProc {
 
 #define mrb_proc_ptr(v)    ((struct RProc*)(mrb_ptr(v)))
 
+struct RProc *mrb_proc_new(mrb_state*, const mrb_irep*);
 MRB_API struct RProc *mrb_proc_new_cfunc(mrb_state*, mrb_func_t);
 MRB_API struct RProc *mrb_closure_new_cfunc(mrb_state *mrb, mrb_func_t func, int nlocals);