diff --git a/usr.bin/tabs/tabs.1 b/usr.bin/tabs/tabs.1
index 51aecca477e9..04baf095b2af 100644
--- a/usr.bin/tabs/tabs.1
+++ b/usr.bin/tabs/tabs.1
@@ -77,19 +77,25 @@ Assembler format (columns 1, 10, 16, 36, 72).
 .It Fl a2
 Assembler format (columns 1, 10, 16, 40, 72).
 .It Fl c
-COBOL normal format (columns 1, 8, 12, 16, 20, 55)
+.Tn COBOL
+normal format (columns 1, 8, 12, 16, 20, 55)
 .It Fl c2
-COBOL compact format (columns 1, 6, 10, 14, 49)
+.Tn COBOL
+compact format (columns 1, 6, 10, 14, 49)
 .It Fl c3
-COBOL compact format (columns 1, 6, 10, 14, 18, 22, 26, 30, 34, 38, 42, 46,
+.Tn COBOL
+compact format (columns 1, 6, 10, 14, 18, 22, 26, 30, 34, 38, 42, 46,
 50, 54, 58, 62, 67).
 .It Fl f
-FORTRAN format (columns 1, 7, 11, 15, 19, 23).
+.Tn FORTRAN
+format (columns 1, 7, 11, 15, 19, 23).
 .It Fl p
-PL/1 format (columns 1, 5, 9, 13, 17, 21, 25, 29, 33, 37, 41, 45, 49, 53,
+.Tn PL/1
+format (columns 1, 5, 9, 13, 17, 21, 25, 29, 33, 37, 41, 45, 49, 53,
 57, 61).
 .It Fl s
-SNOBOL format (columns 1, 10, 55).
+.Tn SNOBOL
+format (columns 1, 10, 55).
 .It Fl u
 Assembler format (columns 1, 12, 20, 44).
 .It Xo