diff --git a/scripts/_common.sh b/scripts/_common.sh
index 2c37081..944a65e 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -7,14 +7,7 @@
 #=================================================
 # PERSONAL HELPERS
 #=================================================
-IS_PACKAGE_CHECK () {
-	if [ ${PACKAGE_CHECK_EXEC:-0} -eq 1 ]
-	then
-		return 0
-	else
-		return 1
-	fi
-}
+
 #=================================================
 # EXPERIMENTAL HELPERS
 #=================================================
diff --git a/scripts/install b/scripts/install
index b5f133c..6991e77 100755
--- a/scripts/install
+++ b/scripts/install
@@ -116,7 +116,7 @@ ynh_script_progression --message="Increasing maximum map count (sysctl)..."
 # Increase the maximum number of files inotify can monitor.
 cp -a ../conf/90-max_map_count-opensearch.conf /etc/sysctl.d/
 # Then, reload the kernel configuration.
-if ! IS_PACKAGE_CHECK   # LXC doesn't allow sysctl to play with kernel options.
+if ! [ "$container" = "lxc" ] # lxc doesn't allow sysctl to play with kernel options.
 then
 	sysctl -p /etc/sysctl.d/90-max_map_count-opensearch.conf
 fi
diff --git a/scripts/remove b/scripts/remove
index 115d181..f662b19 100755
--- a/scripts/remove
+++ b/scripts/remove
@@ -113,7 +113,7 @@ ynh_script_progression --message="Removing various files..."
 if [ -e "/etc/sysctl.d/90-max_map_count-opensearch.conf" ]; then
 	ynh_secure_remove --file="/etc/sysctl.d/90-max_map_count-opensearch.conf"
 	# Reload the kernel configuration.
-	if ! IS_PACKAGE_CHECK   # LXC doesn't allow sysctl to play with kernel options.
+	if ! [ "$container" = "lxc" ] # lxc doesn't allow sysctl to play with kernel options.
 	then
 		sysctl --system
 	fi
diff --git a/scripts/restore b/scripts/restore
index 9d07f2d..d2b60ce 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -91,7 +91,7 @@ chown $app:$app "/run/$app"
 ynh_script_progression --message="Restoring various files..."
 
 ynh_restore_file --origin_path="/etc/sysctl.d/90-max_map_count-opensearch.conf"
-if ! IS_PACKAGE_CHECK   # LXC doesn't allow sysctl to play with kernel options.
+if ! [ "$container" = "lxc" ] # lxc doesn't allow sysctl to play with kernel options.
 then
 	sysctl -p /etc/sysctl.d/90-max_map_count-opensearch.conf
 fi
diff --git a/scripts/upgrade b/scripts/upgrade
index cee2c90..f10ba30 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -120,7 +120,7 @@ ynh_script_progression --message="Increasing maximum map count (sysctl)..."
 # Increase the maximum number of files inotify can monitor.
 cp -a ../conf/90-max_map_count-opensearch.conf /etc/sysctl.d/
 # Then, reload the kernel configuration.
-if ! IS_PACKAGE_CHECK   # LXC doesn't allow sysctl to play with kernel options.
+if ! [ "$container" = "lxc" ] # lxc doesn't allow sysctl to play with kernel options.
 then
 	sysctl -p /etc/sysctl.d/90-max_map_count-opensearch.conf
 fi