diff --git a/reactos/lib/crt/stdlib/atexit.c b/reactos/lib/crt/stdlib/atexit.c
index 7f6fa95f19e..c58e534b773 100644
--- a/reactos/lib/crt/stdlib/atexit.c
+++ b/reactos/lib/crt/stdlib/atexit.c
@@ -2,8 +2,6 @@
 #include <stdlib.h>
 #include <internal/atexit.h>
 
-typedef int (* _onexit_t)(void);
-
 /*
  * @implemented
  *