diff --git a/drivers/atm/atmtcp.c b/drivers/atm/atmtcp.c
index 02ad83d..b867121 100644
--- a/drivers/atm/atmtcp.c
+++ b/drivers/atm/atmtcp.c
@@ -9,6 +9,7 @@
 #include <linux/atm_tcp.h>
 #include <linux/bitops.h>
 #include <linux/init.h>
+#include <linux/slab.h>
 #include <asm/uaccess.h>
 #include <asm/atomic.h>