diff --git a/nmcli-cli-autoconnect-list b/nmcli-cli-autoconnect-list
index e80df06..23371df 100755
--- a/nmcli-cli-autoconnect-list
+++ b/nmcli-cli-autoconnect-list
@@ -52,4 +52,4 @@ main() {
     autoconnect_list "${@}"
 }
 
-[[ ${#BASH_SOURCE[@]} = 1 ]] && main "${@}"
+[[ "${BASH_SOURCE[0]}" == "$0" ]] && main "$@"
diff --git a/nmcli-cli-autoconnect-set b/nmcli-cli-autoconnect-set
index 3f7e9cc..06a8800 100755
--- a/nmcli-cli-autoconnect-set
+++ b/nmcli-cli-autoconnect-set
@@ -104,4 +104,4 @@ main() {
     autoconnect_set "${@}"
 }
 
-[[ ${#BASH_SOURCE[@]} = 1 ]] && main "${@}"
+[[ "${BASH_SOURCE[0]}" == "$0" ]] && main "$@"
diff --git a/nmcli-cli-bond-add b/nmcli-cli-bond-add
index bfd7f0f..095b4f3 100755
--- a/nmcli-cli-bond-add
+++ b/nmcli-cli-bond-add
@@ -142,4 +142,4 @@ main() {
     bond_add "${@}"
 }
 
-[[ ${#BASH_SOURCE[@]} = 1 ]] && main "${@}"
+[[ "${BASH_SOURCE[0]}" == "$0" ]] && main "$@"
diff --git a/nmcli-cli-bond-delete b/nmcli-cli-bond-delete
index 1b9b03f..f116de3 100755
--- a/nmcli-cli-bond-delete
+++ b/nmcli-cli-bond-delete
@@ -129,4 +129,4 @@ main() {
     bond_delete "${@}"
 }
 
-[[ ${#BASH_SOURCE[@]} = 1 ]] && main "${@}"
+[[ "${BASH_SOURCE[0]}" == "$0" ]] && main "$@"
diff --git a/nmcli-cli-bridge-add b/nmcli-cli-bridge-add
index 2245366..f1d232b 100755
--- a/nmcli-cli-bridge-add
+++ b/nmcli-cli-bridge-add
@@ -131,4 +131,4 @@ main() {
     bridge_add "${@}"
 }
 
-[[ ${#BASH_SOURCE[@]} = 1 ]] && main "${@}"
+[[ "${BASH_SOURCE[0]}" == "$0" ]] && main "$@"
diff --git a/nmcli-cli-bridge-delete b/nmcli-cli-bridge-delete
index 9580e93..15a92f5 100755
--- a/nmcli-cli-bridge-delete
+++ b/nmcli-cli-bridge-delete
@@ -124,4 +124,4 @@ main() {
     bridge_delete "${@}"
 }
 
-[[ ${#BASH_SOURCE[@]} = 1 ]] && main "${@}"
+[[ "${BASH_SOURCE[0]}" == "$0" ]] && main "$@"
diff --git a/nmcli-cli-device-name b/nmcli-cli-device-name
index 89be877..3dc4270 100755
--- a/nmcli-cli-device-name
+++ b/nmcli-cli-device-name
@@ -109,4 +109,4 @@ main() {
     device_name_set "${@}"
 }
 
-[[ ${#BASH_SOURCE[@]} = 1 ]] && main "${@}"
+[[ "${BASH_SOURCE[0]}" == "$0" ]] && main "$@"
diff --git a/nmcli-cli-ipv4 b/nmcli-cli-ipv4
index 84bac8b..2d1905b 100755
--- a/nmcli-cli-ipv4
+++ b/nmcli-cli-ipv4
@@ -184,4 +184,4 @@ main() {
     ipv4_set "${@}"
 }
 
-[[ ${#BASH_SOURCE[@]} = 1 ]] && main "${@}"
+[[ "${BASH_SOURCE[0]}" == "$0" ]] && main "$@"
diff --git a/nmcli-cli-ipv4-copy b/nmcli-cli-ipv4-copy
index cfb1d8f..bf460b5 100755
--- a/nmcli-cli-ipv4-copy
+++ b/nmcli-cli-ipv4-copy
@@ -150,4 +150,4 @@ main() {
     ipv4_copy "${@}"
 }
 
-[[ ${#BASH_SOURCE[@]} = 1 ]] && main "${@}"
+[[ "${BASH_SOURCE[0]}" == "$0" ]] && main "$@"
diff --git a/nmcli-cli-ipv6 b/nmcli-cli-ipv6
index f414b0a..181e074 100755
--- a/nmcli-cli-ipv6
+++ b/nmcli-cli-ipv6
@@ -178,4 +178,4 @@ main() {
     ipv6_set "${@}"
 }
 
-[[ ${#BASH_SOURCE[@]} = 1 ]] && main "${@}"
+[[ "${BASH_SOURCE[0]}" == "$0" ]] && main "$@"
diff --git a/nmcli-cli-ipv6-copy b/nmcli-cli-ipv6-copy
index 2da733b..d2a235b 100755
--- a/nmcli-cli-ipv6-copy
+++ b/nmcli-cli-ipv6-copy
@@ -150,4 +150,4 @@ main() {
     ipv6_copy "${@}"
 }
 
-[[ ${#BASH_SOURCE[@]} = 1 ]] && main "${@}"
+[[ "${BASH_SOURCE[0]}" == "$0" ]] && main "$@"
diff --git a/nmcli-cli-restart b/nmcli-cli-restart
index 99442d9..a22dbc3 100755
--- a/nmcli-cli-restart
+++ b/nmcli-cli-restart
@@ -126,4 +126,4 @@ main() {
     restart "${@}"
 }
 
-[[ ${#BASH_SOURCE[@]} = 1 ]] && main "${@}"
+[[ "${BASH_SOURCE[0]}" == "$0" ]] && main "$@"
diff --git a/nmcli-cli-slave-list b/nmcli-cli-slave-list
index 21675d4..94f19df 100755
--- a/nmcli-cli-slave-list
+++ b/nmcli-cli-slave-list
@@ -41,4 +41,4 @@ main() {
     slave_list "${@}"
 }
 
-[[ ${#BASH_SOURCE[@]} = 1 ]] && main "${@}"
+[[ "${BASH_SOURCE[0]}" == "$0" ]] && main "$@"
diff --git a/nmcli-cli-vlan-add b/nmcli-cli-vlan-add
index 38100a5..ae7e18c 100755
--- a/nmcli-cli-vlan-add
+++ b/nmcli-cli-vlan-add
@@ -131,4 +131,4 @@ main() {
     vlan_add "${@}"
 }
 
-[[ ${#BASH_SOURCE[@]} = 1 ]] && main "${@}"
+[[ "${BASH_SOURCE[0]}" == "$0" ]] && main "$@"
diff --git a/nmcli-cli-vlan-delete b/nmcli-cli-vlan-delete
index 1add419..f2fa3dd 100755
--- a/nmcli-cli-vlan-delete
+++ b/nmcli-cli-vlan-delete
@@ -105,4 +105,4 @@ main() {
     vlan_delete "${@}"
 }
 
-[[ ${#BASH_SOURCE[@]} = 1 ]] && main "${@}"
+[[ "${BASH_SOURCE[0]}" == "$0" ]] && main "$@"