diff --git a/drivers/ide/pmac.c b/drivers/ide/pmac.c
index 850ee45..159955d 100644
--- a/drivers/ide/pmac.c
+++ b/drivers/ide/pmac.c
@@ -33,6 +33,7 @@
 #include <linux/adb.h>
 #include <linux/pmu.h>
 #include <linux/scatterlist.h>
+#include <linux/slab.h>
 
 #include <asm/prom.h>
 #include <asm/io.h>