Index: kernel/generic/include/mm/as.h
===================================================================
--- kernel/generic/include/mm/as.h	(revision a1b9f63c506357f379bb6f1d9f633d5a740e941c)
+++ kernel/generic/include/mm/as.h	(revision 70259a55669e39fcfc7d76d43bbf35c26ab91657)
@@ -48,4 +48,5 @@
 #include <lib/elf.h>
 #include <arch.h>
+#include <lib/refcount.h>
 
 #define AS                   THE->as
@@ -111,5 +112,5 @@
 
 	/** Number of references (i.e. tasks that reference this as). */
-	atomic_t refcount;
+	atomic_refcount_t refcount;
 
 	mutex_t lock;