diff --git a/alliance/src/aut/src/autenv.c b/alliance/src/aut/src/autenv.c
index a409bfc1..9b290b14 100644
--- a/alliance/src/aut/src/autenv.c
+++ b/alliance/src/aut/src/autenv.c
@@ -45,7 +45,6 @@
 # include <signal.h>
 # include <stdlib.h>
 # include <unistd.h>
-# include <libgen.h>
 
 # include <mut.h>
 # include "aut.h"