diff --git a/man2/mincore.2 b/man2/mincore.2
index 0840a1113..fd213c2fc 100644
--- a/man2/mincore.2
+++ b/man2/mincore.2
@@ -69,13 +69,16 @@ argument need not be a multiple of the page size,
 but since residency information is returned for whole pages,
 .I length
 is effectively rounded up to the next multiple of the page size.
-One may obtain the page size (PAGE_SIZE) using
+One may obtain the page size
+.RB ( PAGE_SIZE )
+using
 .IR sysconf(_SC_PAGESIZE) .
 
 The
 .I vec
 argument must point to an array containing at least
-(length+PAGE_SIZE-1) / PAGE_SIZE bytes.
+.I "(length+PAGE_SIZE-1) / PAGE_SIZE"
+bytes.
 On return,
 the least significant bit of each byte will be set if
 the corresponding page is currently resident in memory,