diff --git a/extensions/xt_ACCOUNT.c b/extensions/xt_ACCOUNT.c
index 16dcead..9cdb5d4 100644
--- a/extensions/xt_ACCOUNT.c
+++ b/extensions/xt_ACCOUNT.c
@@ -30,7 +30,6 @@
 
 #include <linux/kernel.h>
 #include <linux/mm.h>
-#include <linux/semaphore.h>
 #include <linux/string.h>
 #include <linux/spinlock.h>
 #include <asm/uaccess.h>