diff --git a/doc/makedefs.6 b/doc/makedefs.6
index eb1df4baf..98ed9d4fe 100644
--- a/doc/makedefs.6
+++ b/doc/makedefs.6
@@ -86,8 +86,8 @@ Generate
 and
 .I options
 file. It will read 
-.I dat/gitinfo.txt
-,only if it is present, to obtain 
+.IR dat/gitinfo.txt ,
+only if it is present, to obtain 
 .B githash=
 and 
 .B gitbranch=
@@ -134,7 +134,7 @@ and
 .IR vis_tab.h .
 .SH LONG COMMANDS
 .TP
-.BI --debug
+.B --debug
 Show debugging output.
 .br
 .TP