diff --git a/sys/arm/include/vmparam.h b/sys/arm/include/vmparam.h
index eac46ccface1..267ba6e87fd6 100644
--- a/sys/arm/include/vmparam.h
+++ b/sys/arm/include/vmparam.h
@@ -134,12 +134,15 @@
 #endif
 
 #define VM_MAX_KERNEL_ADDRESS	0xffffffff
+
 /*
  * Virtual size (bytes) for various kernel submaps.
  */
-
 #ifndef VM_KMEM_SIZE
-#define VM_KMEM_SIZE            (12*1024*1024)
+#define VM_KMEM_SIZE		(12*1024*1024)
+#endif
+#ifndef VM_KMEM_SIZE_SCALE
+#define VM_KMEM_SIZE_SCALE	(2)
 #endif
 
 #define MAXTSIZ 	(16*1024*1024)