diff --git a/cryptfs.h b/cryptfs.h
index d6c7dc5..dc7a8c3 100644
--- a/cryptfs.h
+++ b/cryptfs.h
@@ -29,8 +29,10 @@
  * partition.
  */
 
+#include <linux/types.h>
 #include <stdbool.h>
 #include <stdint.h>
+
 #include <cutils/properties.h>
 
 /* The current cryptfs version */