diff --git a/bsp/default/root_file_system/etc/clients_event.sh b/bsp/default/root_file_system/etc/clients_event.sh
index 07b45044..ff29ef9c 100755
--- a/bsp/default/root_file_system/etc/clients_event.sh
+++ b/bsp/default/root_file_system/etc/clients_event.sh
@@ -8,11 +8,11 @@ do
 	if [ "`echo $LINE | grep 'wlan0: new station'`" != "" ]; then
 		i=`expr $i + 1`
 		wget -q -O - http://status.kreativitaet-trifft-technik.de/update/ff\?client_associated=`date +%s`\&clients_count=$i
-        fi
-        if [ "`echo $LINE | grep 'wlan0: unknown event 20'`" != "" ]; then
-                i=`expr $i - 1`
-                wget -q -O - http://status.kreativitaet-trifft-technik.de/update/ff\?client_disassociated=`date +%s`\&clients_count=$i
-        fi
+	fi
+	if [ "`echo $LINE | grep 'wlan0: unknown event 20'`" != "" ]; then
+		i=`expr $i - 1`
+		wget -q -O - http://status.kreativitaet-trifft-technik.de/update/ff\?client_disassociated=`date +%s`\&clients_count=$i
+	fi
 done
 
 
diff --git a/bsp/default/root_file_system/etc/environment.sh b/bsp/default/root_file_system/etc/environment.sh
index 972d1bb7..5566dcd0 100755
--- a/bsp/default/root_file_system/etc/environment.sh
+++ b/bsp/default/root_file_system/etc/environment.sh
@@ -27,27 +27,27 @@ get_batman_interface() {
 }
 
 get_vpn_interface() {
-  test -f /etc/fastdstart.sh || exit;
-  local $(grep -o project=.* /etc/fastdstart.sh)
-  echo ${project}VPN | tr -d '"'
+	test -f /etc/fastdstart.sh || exit;
+	local $(grep -o project=.* /etc/fastdstart.sh)
+	echo ${project}VPN | tr -d '"'
 }
 
 get_debug_level() {
-  echo "0"
+	echo "0"
 }
 
 print_definitions() {
-  echo "# interfaces"
-  echo "WLAN_CLIENT_INTERFACE=$(get_wlan_client_interface)"
-  echo "WLAN_MESH_INTERFACE=$(get_wlan_mesh_interface)"
-  echo "ETH_CLIENT_INTERFACE=$(get_eth_client_interface)"
-  echo "ETH_MESH_INTERFACE=$(get_eth_mesh_interface)"
-  echo "BRIDGE_INTERFACE=$(get_bridge_interface)"
-  echo "BATMAN_INTERFACE=$(get_batman_interface)"
-  echo "VPN_INTERFACE=$(get_vpn_interface)"
-  echo ""
-  echo "# variables"
-  echo "DEBUG=$(get_debug_level)"
+	echo "# interfaces"
+	echo "WLAN_CLIENT_INTERFACE=$(get_wlan_client_interface)"
+	echo "WLAN_MESH_INTERFACE=$(get_wlan_mesh_interface)"
+	echo "ETH_CLIENT_INTERFACE=$(get_eth_client_interface)"
+	echo "ETH_MESH_INTERFACE=$(get_eth_mesh_interface)"
+	echo "BRIDGE_INTERFACE=$(get_bridge_interface)"
+	echo "BATMAN_INTERFACE=$(get_batman_interface)"
+	echo "VPN_INTERFACE=$(get_vpn_interface)"
+	echo ""
+	echo "# variables"
+	echo "DEBUG=$(get_debug_level)"
 }
 
 # program
diff --git a/bsp/default/root_file_system/etc/hotplug.d/iface/50-fastdstart b/bsp/default/root_file_system/etc/hotplug.d/iface/50-fastdstart
index 0c770b19..8b435eaf 100755
--- a/bsp/default/root_file_system/etc/hotplug.d/iface/50-fastdstart
+++ b/bsp/default/root_file_system/etc/hotplug.d/iface/50-fastdstart
@@ -1,5 +1,5 @@
 #!/bin/sh 
 [ "$ACTION" = "ifup" -a "$INTERFACE" = "wan" ] && {
-        sleep 3
-        sh /etc/fastdstart.sh
+	sleep 3
+	sh /etc/fastdstart.sh
 }
diff --git a/bsp/default/root_file_system/etc/hotplug.d/iface/51-configurator b/bsp/default/root_file_system/etc/hotplug.d/iface/51-configurator
index c13c3bf2..b3368d67 100755
--- a/bsp/default/root_file_system/etc/hotplug.d/iface/51-configurator
+++ b/bsp/default/root_file_system/etc/hotplug.d/iface/51-configurator
@@ -1,4 +1,4 @@
 #!/bin/sh
 [ "$ACTION" = "ifup" -a "$INTERFACE" = "wan" ] && {
-        sh /etc/configurator.sh
+	sh /etc/configurator.sh
 }