diff --git a/drivers/mtd/maps/pci.c b/drivers/mtd/maps/pci.c
index 18dbd3a..d9c64e9 100644
--- a/drivers/mtd/maps/pci.c
+++ b/drivers/mtd/maps/pci.c
@@ -17,6 +17,7 @@
 #include <linux/kernel.h>
 #include <linux/pci.h>
 #include <linux/init.h>
+#include <linux/slab.h>
 
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/map.h>