diff --git a/drivers/base/dma-coherent.c b/drivers/base/dma-coherent.c
index 962a3b5..d4d8ce5 100644
--- a/drivers/base/dma-coherent.c
+++ b/drivers/base/dma-coherent.c
@@ -2,6 +2,7 @@
  * Coherent per-device memory handling.
  * Borrowed from i386
  */
+#include <linux/slab.h>
 #include <linux/kernel.h>
 #include <linux/dma-mapping.h>