1 files changed, 1 insertions, 1 deletions
diff --git a/string.c b/string.c
index f8a64fca13..24dd29b32e 100644
--- a/string.c
+++ b/string.c
@@ -1578,7 +1578,7 @@ rb_str_free(VALUE str)
     }
 }
 
-RUBY_FUNC_EXPORTED size_t
+size_t
 rb_str_memsize(VALUE str)
 {
     if (FL_TEST(str, STR_NOEMBED|STR_SHARED|STR_NOFREE) == STR_NOEMBED) {