diff --git a/proc.c b/proc.c
index d45d8a3209..25327af6f3 100644
--- a/proc.c
+++ b/proc.c
@@ -1638,11 +1638,11 @@ rb_mod_define_method(int argc, VALUE *argv, VALUE mod)
 {
     ID id;
     VALUE body;
-    int noex = NOEX_PUBLIC;
+    rb_method_flag_t noex = NOEX_PUBLIC;
     const rb_cref_t *cref = rb_vm_cref_in_context(mod, mod);
 
     if (cref) {
-	noex = CREF_VISI(cref);
+	noex = (rb_method_flag_t)CREF_VISI(cref);
     }
 
     if (argc == 1) {
diff --git a/vm.c b/vm.c
index da25fbd04b..b3b236b191 100644
--- a/vm.c
+++ b/vm.c
@@ -2267,7 +2267,7 @@ vm_define_method(rb_thread_t *th, VALUE obj, ID id, VALUE iseqval,
 		 rb_num_t is_singleton, rb_cref_t *cref)
 {
     VALUE klass = CREF_CLASS(cref);
-    int noex = CREF_VISI(cref);
+    rb_method_flag_t noex = (rb_method_flag_t)CREF_VISI(cref);
     rb_iseq_t *miseq;
     GetISeqPtr(iseqval, miseq);