2 files changed, 2 insertions, 2 deletions
diff --git a/mrbgems/mruby-sprintf/src/sprintf.c b/mrbgems/mruby-sprintf/src/sprintf.c
index 6213c65f4..8aff03cbf 100644
--- a/mrbgems/mruby-sprintf/src/sprintf.c
+++ b/mrbgems/mruby-sprintf/src/sprintf.c
@@ -111,7 +111,7 @@ mrb_fix2binstr(mrb_state *mrb, mrb_value x, int base)
     }
   }
 
-  return mrb_str_new2(mrb, b);
+  return mrb_str_new_cstr(mrb, b);
 }
 
 #define FNONE  0
diff --git a/mrbgems/mruby-struct/src/struct.c b/mrbgems/mruby-struct/src/struct.c
index 33997b294..884d4cdc6 100644
--- a/mrbgems/mruby-struct/src/struct.c
+++ b/mrbgems/mruby-struct/src/struct.c
@@ -288,7 +288,7 @@ mrb_struct_define(mrb_state *mrb, const char *name, ...)
   char *mem;
 
   if (!name) nm = mrb_nil_value();
-  else nm = mrb_str_new2(mrb, name);
+  else nm = mrb_str_new_cstr(mrb, name);
   ary = mrb_ary_new(mrb);
 
   va_start(ar, name);