diff --git a/drivers/rtc/rtc-pl031.c b/drivers/rtc/rtc-pl031.c
index c256aac..3587d99 100644
--- a/drivers/rtc/rtc-pl031.c
+++ b/drivers/rtc/rtc-pl031.c
@@ -24,6 +24,7 @@
 #include <linux/bcd.h>
 #include <linux/delay.h>
 #include <linux/version.h>
+#include <linux/slab.h>
 
 /*
  * Register definitions