1 files changed, 2 insertions, 2 deletions
diff --git a/src/etc.c b/src/etc.c
index 3d861320d..4542c4abd 100644
--- a/src/etc.c
+++ b/src/etc.c
@@ -25,7 +25,7 @@ mrb_data_object_alloc(mrb_state *mrb, struct RClass *klass, void *ptr, const str
 void *
 mrb_get_datatype(mrb_state *mrb, mrb_value obj, const struct mrb_data_type *type)
 {
-  if (SPECIAL_CONST_P(obj) || (mrb_type(obj) != MRB_TT_DATA)) {
+  if (mrb_special_const_p(obj) || (mrb_type(obj) != MRB_TT_DATA)) {
     return NULL;
   }
   if (DATA_TYPE(obj) != type) {
@@ -39,7 +39,7 @@ mrb_check_datatype(mrb_state *mrb, mrb_value obj, const struct mrb_data_type *ty
 {
   static const char mesg[] = "wrong argument type %s (expected %s)";
 
-  if (SPECIAL_CONST_P(obj) || (mrb_type(obj) != MRB_TT_DATA)) {
+  if (mrb_special_const_p(obj) || (mrb_type(obj) != MRB_TT_DATA)) {
     mrb_check_type(mrb, obj, MRB_TT_DATA);
   }
   if (DATA_TYPE(obj) != type) {