diff --git a/postinstall-pak b/postinstall-pak
index 57c9f7c..7fc71a0 100755
--- a/postinstall-pak
+++ b/postinstall-pak
@@ -16,8 +16,12 @@ mkdir -p /etc/systemd/system/reseed.d/
 
 if [ -f /usr/bin/zenity ]; then
     RESEED_EMAIL=$(zenity --entry --title "Reseed Configuration" --text "$RESEED_MESSAGE" 10 30 3>&1 1>&2 2>&3)
-    echo "$RESEED_DEFAULT$RESEED_EMAIL\"" >> /etc/default/reseed
-    echo "$RESEED_CONF$RESEED_EMAIL\"" >> /etc/systemd/system/reseed.d/reseed.conf
+    if [ -d /etc/systemd/system/ ]; then
+        echo "$RESEED_CONF$RESEED_EMAIL\"" > /etc/systemd/system/reseed.d/reseed.conf
+        rm -f /etc/default/reseed /etc/init.d/reseed
+    else
+        echo "$RESEED_DEFAULT$RESEED_EMAIL\"" > /etc/default/reseed
+    fi
     exit 0
 fi
 
@@ -29,7 +33,11 @@ fi
 
 if [ -f /usr/bin/whiptail ]; then    
     RESEED_EMAIL=$(whiptail --inputbox "$RESEED_MESSAGE" 10 30 3>&1 1>&2 2>&3)
-    echo "$RESEED_DEFAULT$RESEED_EMAIL\"" >> /etc/default/reseed
-    echo "$RESEED_CONF$RESEED_EMAIL\"" >> /etc/systemd/system/reseed.d/reseed.conf
+    if [ -d /etc/systemd/system/ ]; then
+        echo "$RESEED_CONF$RESEED_EMAIL\"" > /etc/systemd/system/reseed.d/reseed.conf
+        rm -f /etc/default/reseed /etc/init.d/reseed
+    else
+        echo "$RESEED_DEFAULT$RESEED_EMAIL\"" > /etc/default/reseed
+    fi
     exit 0
 fi