diff --git a/libc/include/stdio.h b/libc/include/stdio.h
index a9bb124..7e5a976 100644
--- a/libc/include/stdio.h
+++ b/libc/include/stdio.h
@@ -52,11 +52,6 @@
 
 __BEGIN_DECLS
 
-#if defined(__clang__)
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wnullability-completeness"
-#endif
-
 typedef off_t fpos_t;
 typedef off64_t fpos64_t;
 
@@ -119,12 +114,12 @@
 int	 fgetc(FILE *);
 char	*fgets(char *, int, FILE *) __overloadable
   __RENAME_CLANG(fgets);
-int	 fprintf(FILE * , const char * _Nonnull, ...) __printflike(2, 3);
+int	 fprintf(FILE * , const char *, ...) __printflike(2, 3);
 int	 fputc(int, FILE *);
 int	 fputs(const char *, FILE *);
 size_t	 fread(void *, size_t, size_t, FILE *)
       __overloadable __RENAME_CLANG(fread);
-int	 fscanf(FILE *, const char * _Nonnull, ...) __scanflike(2, 3);
+int	 fscanf(FILE *, const char *, ...) __scanflike(2, 3);
 size_t	 fwrite(const void *, size_t, size_t, FILE *)
     __overloadable __RENAME_CLANG(fwrite);
 int	 getc(FILE *);
@@ -133,23 +128,23 @@
 ssize_t getline(char**, size_t*, FILE*) __INTRODUCED_IN(18);
 
 void	 perror(const char *);
-int	 printf(const char * _Nonnull, ...) __printflike(1, 2);
+int	 printf(const char *, ...) __printflike(1, 2);
 int	 putc(int, FILE *);
 int	 putchar(int);
 int	 puts(const char *);
 int	 remove(const char *);
 void	 rewind(FILE *);
-int	 scanf(const char * _Nonnull, ...) __scanflike(1, 2);
+int	 scanf(const char *, ...) __scanflike(1, 2);
 void	 setbuf(FILE *, char *);
 int	 setvbuf(FILE *, char *, int, size_t);
-int	 sscanf(const char *, const char * _Nonnull, ...) __scanflike(2, 3);
+int	 sscanf(const char *, const char *, ...) __scanflike(2, 3);
 int	 ungetc(int, FILE *);
-int	 vfprintf(FILE *, const char * _Nonnull, va_list) __printflike(2, 0);
-int	 vprintf(const char * _Nonnull, va_list) __printflike(1, 0);
+int	 vfprintf(FILE *, const char *, va_list) __printflike(2, 0);
+int	 vprintf(const char *, va_list) __printflike(1, 0);
 
 #if __ANDROID_API__ >= 21
-int dprintf(int, const char* _Nonnull, ...) __printflike(2, 3) __INTRODUCED_IN(21);
-int vdprintf(int, const char* _Nonnull, va_list) __printflike(2, 0) __INTRODUCED_IN(21);
+int dprintf(int, const char*, ...) __printflike(2, 3) __INTRODUCED_IN(21);
+int vdprintf(int, const char*, va_list) __printflike(2, 0) __INTRODUCED_IN(21);
 #else
 /*
  * Old versions of Android called these fdprintf and vfdprintf out of fears that the glibc names
@@ -158,18 +153,18 @@
  * Allow users to just use dprintf and vfdprintf on any version by renaming those calls to their
  * legacy equivalents if needed.
  */
-int dprintf(int, const char* _Nonnull, ...) __printflike(2, 3) __RENAME(fdprintf);
-int vdprintf(int, const char* _Nonnull, va_list) __printflike(2, 0) __RENAME(vfdprintf);
+int dprintf(int, const char*, ...) __printflike(2, 3) __RENAME(fdprintf);
+int vdprintf(int, const char*, va_list) __printflike(2, 0) __RENAME(vfdprintf);
 #endif
 
 #if (defined(__STDC_VERSION__) && __STDC_VERSION__ < 201112L) || \
     (defined(__cplusplus) && __cplusplus <= 201103L)
 char* gets(char*) __attribute__((deprecated("gets is unsafe, use fgets instead")));
 #endif
-int sprintf(char*, const char* _Nonnull, ...)
+int sprintf(char*, const char*, ...)
     __printflike(2, 3) __warnattr_strict("sprintf is often misused; please use snprintf")
     __overloadable __RENAME_CLANG(sprintf);
-int vsprintf(char*, const char* _Nonnull, va_list)
+int vsprintf(char*, const char*, va_list)
     __overloadable __printflike(2, 0) __RENAME_CLANG(vsprintf)
     __warnattr_strict("vsprintf is often misused; please use vsnprintf");
 char* tmpnam(char*)
@@ -226,13 +221,13 @@
 FILE* tmpfile(void);
 FILE* tmpfile64(void) __INTRODUCED_IN(24);
 
-int snprintf(char*, size_t, const char* _Nonnull, ...)
+int snprintf(char*, size_t, const char*, ...)
     __printflike(3, 4) __overloadable __RENAME_CLANG(snprintf);
-int vfscanf(FILE*, const char* _Nonnull, va_list) __scanflike(2, 0);
-int vscanf(const char* _Nonnull , va_list) __scanflike(1, 0);
-int vsnprintf(char*, size_t, const char* _Nonnull, va_list)
+int vfscanf(FILE*, const char*, va_list) __scanflike(2, 0);
+int vscanf(const char* , va_list) __scanflike(1, 0);
+int vsnprintf(char*, size_t, const char*, va_list)
     __printflike(3, 0) __overloadable __RENAME_CLANG(vsnprintf);
-int vsscanf(const char* _Nonnull, const char* _Nonnull, va_list) __scanflike(2, 0);
+int vsscanf(const char*, const char*, va_list) __scanflike(2, 0);
 
 #define L_ctermid 1024 /* size for ctermid() */
 char* ctermid(char*) __INTRODUCED_IN(26);
@@ -253,12 +248,12 @@
 FILE* open_memstream(char**, size_t*) __INTRODUCED_IN(23);
 
 #if defined(__USE_BSD) || defined(__BIONIC__) /* Historically bionic exposed these. */
-int  asprintf(char**, const char* _Nonnull, ...) __printflike(2, 3);
+int  asprintf(char**, const char*, ...) __printflike(2, 3);
 char* fgetln(FILE*, size_t*);
 int fpurge(FILE*);
 void setbuffer(FILE*, char*, int);
 int setlinebuf(FILE*);
-int vasprintf(char**, const char* _Nonnull, va_list) __printflike(2, 0);
+int vasprintf(char**, const char*, va_list) __printflike(2, 0);
 void clearerr_unlocked(FILE*) __INTRODUCED_IN(23);
 int feof_unlocked(FILE*) __INTRODUCED_IN(23);
 int ferror_unlocked(FILE*) __INTRODUCED_IN(23);
@@ -271,10 +266,6 @@
 #include <bits/fortify/stdio.h>
 #endif
 
-#if defined(__clang__)
-#pragma clang diagnostic pop
-#endif
-
 __END_DECLS
 
 #endif /* _STDIO_H_ */