diff --git a/src/man/firemon.txt b/src/man/firemon.txt
index fd58a7168..9d0785a4a 100644
--- a/src/man/firemon.txt
+++ b/src/man/firemon.txt
@@ -118,3 +118,4 @@ Homepage: https://firejail.wordpress.com
 .BR firejail-login (5),
 .BR firejail-users (5),
 .BR jailcheck (1)
+.\" vim: set filetype=groff :
diff --git a/src/man/jailcheck.txt b/src/man/jailcheck.txt
index 483f47fb9..e889ea91b 100644
--- a/src/man/jailcheck.txt
+++ b/src/man/jailcheck.txt
@@ -115,3 +115,4 @@ Homepage: https://firejail.wordpress.com
 .BR firejail-profile (5),
 .BR firejail-login (5),
 .BR firejail-users (5),
+.\" vim: set filetype=groff :