diff --git a/drivers/mmc/host/at91_mci.c b/drivers/mmc/host/at91_mci.c
index 5f3a599ead07bbdfae11f7abc0198285e743db81..87226cd202a5086f7d90699f0a43d6d4e99725a1 100644
--- a/drivers/mmc/host/at91_mci.c
+++ b/drivers/mmc/host/at91_mci.c
@@ -66,6 +66,7 @@
 #include <linux/clk.h>
 #include <linux/atmel_pdc.h>
 #include <linux/gfp.h>
+#include <linux/highmem.h>
 
 #include <linux/mmc/host.h>