diff --git a/src/man/firecfg.txt b/src/man/firecfg.txt
index 280a4aff1..42add6a41 100644
--- a/src/man/firecfg.txt
+++ b/src/man/firecfg.txt
@@ -146,3 +146,4 @@ 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/firejail-login.txt b/src/man/firejail-login.txt
index 05afd55b5..f03fc3c37 100644
--- a/src/man/firejail-login.txt
+++ b/src/man/firejail-login.txt
@@ -40,3 +40,4 @@ Homepage: https://firejail.wordpress.com
 .BR firejail-profile (5),
 .BR firejail-users (5),
 .BR jailcheck (1)
+.\" vim: set filetype=groff :
diff --git a/src/man/firejail-profile.txt b/src/man/firejail-profile.txt
index be1f55f0f..ecfcabb87 100644
--- a/src/man/firejail-profile.txt
+++ b/src/man/firejail-profile.txt
@@ -1031,3 +1031,4 @@ Homepage: https://firejail.wordpress.com
 
 .UR https://github.com/netblue30/firejail/wiki/Creating-Profiles
 .UE
+.\" vim: set filetype=groff :
diff --git a/src/man/firejail-users.txt b/src/man/firejail-users.txt
index e3cce7ed5..7aa151680 100644
--- a/src/man/firejail-users.txt
+++ b/src/man/firejail-users.txt
@@ -60,3 +60,4 @@ Homepage: https://firejail.wordpress.com
 .BR firejail-profile (5),
 .BR firejail-login (5),
 .BR jailcheck (1)
+.\" vim: set filetype=groff :
diff --git a/src/man/firejail.txt b/src/man/firejail.txt
index 087d1c85a..029c9dd36 100644
--- a/src/man/firejail.txt
+++ b/src/man/firejail.txt
@@ -3611,3 +3611,4 @@ Homepage: https://firejail.wordpress.com
 .UE ,
 .UR https://github.com/netblue30/firejail
 .UE
+.\" vim: set filetype=groff :