diff --git a/debian/weatherstation-chart.postinst b/debian/weatherstation-chart.postinst
index 1043214..bb56467 100644
--- a/debian/weatherstation-chart.postinst
+++ b/debian/weatherstation-chart.postinst
@@ -24,4 +24,9 @@ if [ -e /etc/weatherstation/frontend.conf ]; then
 	fi
 fi
 
+# Fixperms:
+/bin/chown weatherstation:weatherstation  /etc/weatherstation/chart.conf
+/bin/chmod 440 /etc/weatherstation/chart.conf
 
+/bin/chown weatherstation:weatherstation $LINKTARGET
+/bin/chmod 644 $LINKTARGET
diff --git a/debian/weatherstation-checksensor.postinst b/debian/weatherstation-checksensor.postinst
index bbcc1cb..6f22d9b 100644
--- a/debian/weatherstation-checksensor.postinst
+++ b/debian/weatherstation-checksensor.postinst
@@ -10,3 +10,7 @@ if ! getent passwd weatherstation >/dev/null 2>&1; then
 	weatherstation 
         echo "."
 fi
+
+# Fixperms:
+/bin/chown weatherstation:weatherstation  /etc/weatherstation/checksensor.conf
+/bin/chmod 440 /etc/weatherstation/checksensor.conf
diff --git a/debian/weatherstation-frontend.postinst b/debian/weatherstation-frontend.postinst
index 5d1bff6..0cb5d13 100644
--- a/debian/weatherstation-frontend.postinst
+++ b/debian/weatherstation-frontend.postinst
@@ -24,4 +24,9 @@ if [ -e /etc/weatherstation/chart.conf ]; then
 	fi
 fi
 
+
+# Fixperms:
+/bin/chown weatherstation:www-data  /etc/weatherstation/frontend.conf
+/bin/chmod 440 /etc/weatherstation/frontend.conf
+
 #DEBHELPER#
diff --git a/debian/weatherstation-weatherd.postinst b/debian/weatherstation-weatherd.postinst
index 92fc740..12dee0f 100644
--- a/debian/weatherstation-weatherd.postinst
+++ b/debian/weatherstation-weatherd.postinst
@@ -10,3 +10,7 @@ if ! getent passwd weatherstation >/dev/null 2>&1; then
 	weatherstation
         echo "."
 fi
+
+# Fixperms:
+/bin/chown weatherstation:weatherstation  /etc/weatherstation/weatherd.conf
+/bin/chmod 440 /etc/weatherstation/weather.conf