diff --git a/scripts/install b/scripts/install
index 69c4fe0..10a5118 100644
--- a/scripts/install
+++ b/scripts/install
@@ -90,7 +90,7 @@ ynh_app_setting_set $app cli_port $cli_port
 # INSTALL DEPENDENCIES
 #=================================================
 
-# WARRNING : theses command are used in INSTALL, UPGRADE, RESTORE
+# WARNING : theses command are used in INSTALL, UPGRADE, RESTORE
 # For any update do it in all files
 ynh_install_app_dependencies coturn build-essential python2.7-dev libffi-dev python-pip python-setuptools sqlite3 libssl-dev python-virtualenv libxml2-dev libxslt1-dev python-lxml libjpeg-dev libpq-dev postgresql acl
 pip install --upgrade virtualenv
@@ -122,7 +122,7 @@ ynh_psql_execute_as_root \
 
 # Create empty dir for synapse
 
-# WARRNING : theses command are used in INSTALL, UPGRADE
+# WARNING : theses command are used in INSTALL, UPGRADE
 # For any update do it in all files
 mkdir -p /var/lib/matrix-$app
 mkdir -p /var/log/matrix-$app
@@ -131,7 +131,7 @@ mkdir -p $final_path
 
 # Install synapse in virtualenv
 
-# WARRNING : theses command are used in INSTALL, UPGRADE (2 times)
+# WARNING : theses command are used in INSTALL, UPGRADE (2 times)
 # For any update do it in all files
 if [ -n "$(uname -m | grep arm)" ]
 then
@@ -220,7 +220,7 @@ ynh_app_setting_set $app turnserver_pwd $turnserver_pwd
 
 # Configure Synapse
 
-# WARRNING : theses command are used in INSTALL, UPGRADE (2 times)
+# WARNING : theses command are used in INSTALL, UPGRADE (2 times)
 # For any update do it in all files
 
 homeserver_config_path="/etc/matrix-$app/homeserver.yaml"
@@ -256,7 +256,7 @@ ynh_store_file_checksum "/etc/matrix-$app/log.yaml"
 # SET COTURN CONFIG
 #=================================================
 
-# WARRNING : theses command are used in INSTALL, UPGRADE
+# WARNING : theses command are used in INSTALL, UPGRADE
 # For any update do it in all files
 
 coturn_config_path="/etc/matrix-$app/coturn.conf"
@@ -301,7 +301,7 @@ ynh_use_logrotate /var/log/matrix-$app
 # ADD SCRIPT FOR COTURN CRON
 #=================================================
 
-# WARRNING : theses command are used in INSTALL, UPGRADE
+# WARNING : theses command are used in INSTALL, UPGRADE
 # For any update do it in all files
 
 cp ../sources/Coturn_config_rotate.sh $final_path/
@@ -352,7 +352,7 @@ ynh_check_starting "Synapse now listening on port $synapse_tls_port" "/var/log/m
 # SEND A README FOR THE ADMIN
 #=================================================
 
-# WARRNING : theses command are used in INSTALL, RESTORE
+# WARNING : theses command are used in INSTALL, RESTORE
 # For any update do it in all files
 
 message="To federate this app you need to add this line in your DNS configuration:
diff --git a/scripts/restore b/scripts/restore
index e6d6d5f..65c7baf 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -57,7 +57,7 @@ ynh_restore
 # REINSTALL DEPENDENCIES
 #=================================================
 
-# WARRNING : theses command are used in INSTALL, UPGRADE, RESTORE
+# WARNING : theses command are used in INSTALL, UPGRADE, RESTORE
 # For any update do it in all files
 ynh_install_app_dependencies coturn build-essential python2.7-dev libffi-dev python-pip python-setuptools sqlite3 libssl-dev python-virtualenv libxml2-dev libxslt1-dev python-lxml libjpeg-dev libpq-dev postgresql acl
 pip install --upgrade virtualenv
@@ -200,7 +200,7 @@ ynh_check_starting "Synapse now listening on port $synapse_tls_port" "/var/log/m
 # SEND A README FOR THE ADMIN
 #=================================================
 
-# WARRNING : theses command are used in INSTALL, RESTORE
+# WARNING : theses command are used in INSTALL, RESTORE
 # For any update do it in all files
 
 message="To federate this app you need to add this line in your DNS configuration:
diff --git a/scripts/upgrade b/scripts/upgrade
index 9acce4b..515b7cb 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -150,7 +150,7 @@ fi
 # UPDATE SYNAPSE CONFIG
 #=================================================
 
-# WARRNING : theses command are used in INSTALL, UPGRADE
+# WARNING : theses command are used in INSTALL, UPGRADE
 # For any update do it in all files
 
 homeserver_config_path="/etc/matrix-$app/homeserver.yaml"
@@ -239,7 +239,7 @@ ynh_add_nginx_config
 # UPDATE COTURN CONFIG
 #=================================================
 
-# WARRNING : theses command are used in INSTALL, UPGRADE
+# WARNING : theses command are used in INSTALL, UPGRADE
 # For any update do it in all files
 
 coturn_config_path="/etc/matrix-$app/coturn.conf"
@@ -278,7 +278,7 @@ ynh_store_file_checksum "$coturn_config_path"
 # ADD SCRIPT FOR COTURN CRON
 #=================================================
 
-# WARRNING : theses command are used in INSTALL, UPGRADE
+# WARNING : theses command are used in INSTALL, UPGRADE
 # For any update do it in all files
 
 cp ../sources/Coturn_config_rotate.sh $final_path/