diff --git a/drivers/char/generic_serial.c b/drivers/char/generic_serial.c
index d400cbd..5954ee1 100644
--- a/drivers/char/generic_serial.c
+++ b/drivers/char/generic_serial.c
@@ -29,6 +29,7 @@
 #include <linux/interrupt.h>
 #include <linux/tty_flip.h>
 #include <linux/delay.h>
+#include <linux/gfp.h>
 #include <asm/uaccess.h>
 
 #define DEBUG