diff --git a/libc/include/stdlib.h b/libc/include/stdlib.h
index 252e73a..4aa27f9 100644
--- a/libc/include/stdlib.h
+++ b/libc/include/stdlib.h
@@ -161,11 +161,11 @@
 void setprogname(const char* __name) __INTRODUCED_IN(21);
 
 int mblen(const char* __s, size_t __n) __INTRODUCED_IN_NO_GUARD_FOR_NDK(26);
-size_t mbstowcs(wchar_t* __dst, const char* __src, size_t __n) __INTRODUCED_IN(21) __VERSIONER_NO_GUARD;
+size_t mbstowcs(wchar_t* __dst, const char* __src, size_t __n) __INTRODUCED_IN_NO_GUARD_FOR_NDK(21);
 int mbtowc(wchar_t* __wc_ptr, const char* __s, size_t __n) __INTRODUCED_IN_NO_GUARD_FOR_NDK(21);
 int wctomb(char* __dst, wchar_t __wc) __INTRODUCED_IN_NO_GUARD_FOR_NDK(21);
 
-size_t wcstombs(char* __dst, const wchar_t* __src, size_t __n) __INTRODUCED_IN(21) __VERSIONER_NO_GUARD;
+size_t wcstombs(char* __dst, const wchar_t* __src, size_t __n) __INTRODUCED_IN_NO_GUARD_FOR_NDK(21);
 
 #if __ANDROID_API__ >= 21
 size_t __ctype_get_mb_cur_max(void) __INTRODUCED_IN(21);