diff --git a/include/stdio.h b/include/stdio.h
index 2932c76f..7c4f9ee4 100644
--- a/include/stdio.h
+++ b/include/stdio.h
@@ -188,7 +188,7 @@ typedef ssize_t (cookie_write_function_t)(void *, const char *, size_t);
 typedef int (cookie_seek_function_t)(void *, off_t *, int);
 typedef int (cookie_close_function_t)(void *);
 
-typedef struct {
+typedef struct _IO_cookie_io_functions_t {
 	cookie_read_function_t *read;
 	cookie_write_function_t *write;
 	cookie_seek_function_t *seek;