diff --git a/libc/include/sys/stat.h b/libc/include/sys/stat.h
index 77d7cac..4900e84 100644
--- a/libc/include/sys/stat.h
+++ b/libc/include/sys/stat.h
@@ -181,6 +181,7 @@
 #endif /* defined(__BIONIC_FORTIFY) */
 
 extern int mkfifo(const char*, mode_t);
+extern int mkfifoat(int, const char*, mode_t);
 
 extern int fchmodat(int, const char*, mode_t, int);
 extern int mkdirat(int, const char*, mode_t);