diff --git a/man4/cciss.4 b/man4/cciss.4
index d5732f168..6db148b88 100644
--- a/man4/cciss.4
+++ b/man4/cciss.4
@@ -111,12 +111,14 @@ Major numbers:
 .PP
 Minor numbers:
 .PP
+.EX
     b7 b6 b5 b4 b3 b2 b1 b0
     |----+----| |----+----|
          |           |
          |           +-------- Partition ID (0=wholedev, 1\-15 partition)
          |
          +-------------------- Logical Volume number
+.EE
 .PP
 The device naming scheme is:
 .PP