diff --git a/sys/arm/include/vmparam.h b/sys/arm/include/vmparam.h
index bf6e9f4b4375..1c6085e640b9 100644
--- a/sys/arm/include/vmparam.h
+++ b/sys/arm/include/vmparam.h
@@ -77,9 +77,9 @@
 #define	VM_PHYSSEG_MAX		32
 
 /*
- * The physical address space is densely populated.
+ * The physical address space may be sparsely populated on some ARM systems.
  */
-#define	VM_PHYSSEG_DENSE
+#define	VM_PHYSSEG_SPARSE
 
 /*
  * Create two free page pools.  Since the ARM kernel virtual address