diff --git a/include/stdio.h b/include/stdio.h
index c698124..01e5bda 100644
--- a/include/stdio.h
+++ b/include/stdio.h
@@ -34,7 +34,7 @@ long ftell(FILE *);
 
 size_t fwrite(const void *, size_t, size_t, FILE *);
 
-void sebuf(FILE *, char *);
+void setbuf(FILE *, char *);
 
 int vfprintf(FILE *, const char *, va_list);