diff --git a/dracut-module-setup.sh b/dracut-module-setup.sh
index a3d83a2..1519f50 100755
--- a/dracut-module-setup.sh
+++ b/dracut-module-setup.sh
@@ -358,7 +358,7 @@ kdump_setup_bridge() {
         _dev=${_dev##*/}
         _kdumpdev=$_dev
         if kdump_is_bond "$_dev"; then
-            $(kdump_setup_bond "$_dev" "$(get_nmcli_connection_show_cmd_by_ifname "$_dev")")
+            (kdump_setup_bond "$_dev" "$(get_nmcli_connection_show_cmd_by_ifname "$_dev")")
             if [[ $? != 0 ]]; then
                 exit 1
             fi
@@ -441,7 +441,7 @@ kdump_setup_vlan() {
         derror "Vlan over bridge is not supported!"
         exit 1
     elif kdump_is_bond "$_phydev"; then
-        $(kdump_setup_bond "$_phydev" "$(get_nmcli_connection_show_cmd_by_ifname "$_phydev")")
+        (kdump_setup_bond "$_phydev" "$(get_nmcli_connection_show_cmd_by_ifname "$_phydev")")
         if [[ $? != 0 ]]; then
             exit 1
         fi
@@ -557,7 +557,7 @@ kdump_install_net() {
     _znet_netdev=$(find_online_znet_device)
     if [[ -n "$_znet_netdev" ]]; then
         _nm_show_cmd_znet=$(get_nmcli_connection_show_cmd_by_ifname "$_znet_netdev")
-        $(kdump_setup_znet "$_znet_netdev" "$_nm_show_cmd_znet")
+        (kdump_setup_znet "$_znet_netdev" "$_nm_show_cmd_znet")
         if [[ $? != 0 ]]; then
             derror "Failed to set up znet"
             exit 1
@@ -588,7 +588,7 @@ kdump_install_net() {
     if kdump_is_bridge "$_netdev"; then
         kdump_setup_bridge "$_netdev"
     elif kdump_is_bond "$_netdev"; then
-        $(kdump_setup_bond "$_netdev" "$_nm_show_cmd")
+        (kdump_setup_bond "$_netdev" "$_nm_show_cmd")
         if [[ $? != 0 ]]; then
             exit 1
         fi