diff --git a/drivers/ide/ide-proc.c b/drivers/ide/ide-proc.c
index 017c095..a3133d7 100644
--- a/drivers/ide/ide-proc.c
+++ b/drivers/ide/ide-proc.c
@@ -25,6 +25,7 @@
 #include <linux/ctype.h>
 #include <linux/ide.h>
 #include <linux/seq_file.h>
+#include <linux/slab.h>
 
 #include <asm/io.h>