diff --git a/doc/makedefs.6 b/doc/makedefs.6
index 0442c80dc..fd6fe8941 100644
--- a/doc/makedefs.6
+++ b/doc/makedefs.6
@@ -111,7 +111,7 @@ file.
 .TP
 .B \-p
 Generate
-.I pm.h
+.IR pm.h .
 .br
 .TP
 .B \-q
@@ -149,7 +149,7 @@ file.
 .TP
 .B \-h
 Generate the
-.B oracles
+.I oracles
 file.
 .br
 .SH LONG COMMANDS