diff --git a/bash_functions.sh b/bash_functions.sh
index b1c0475..1f3cbfe 100644
--- a/bash_functions.sh
+++ b/bash_functions.sh
@@ -27,11 +27,12 @@ prepare_configs() {
     # If the setup variable file exists,
     if [[ -e "${setupVars}" ]]; then
         # update the variables in the file
-        sed -i.update.bak '/PIHOLE_INTERFACE/d;/IPV4_ADDRESS/d;/IPV6_ADDRESS/d;/PIHOLE_DNS_1/d;/PIHOLE_DNS_2/d;/QUERY_LOGGING/d;/INSTALL_WEB_SERVER/d;/INSTALL_WEB_INTERFACE/d;/LIGHTTPD_ENABLED/d;' "${setupVars}"
         local USERWEBPASSWORD="${WEBPASSWORD}"
         . "${setupVars}"
         # Stash and pop the user password to avoid setting the password to the hashed setupVar variable
         WEBPASSWORD="${USERWEBPASSWORD}"
+        # Clean up old before re-writing the required setupVars
+        sed -i.update.bak '/PIHOLE_INTERFACE/d;/IPV4_ADDRESS/d;/IPV6_ADDRESS/d;/PIHOLE_DNS_1/d;/PIHOLE_DNS_2/d;/QUERY_LOGGING/d;/INSTALL_WEB_SERVER/d;/INSTALL_WEB_INTERFACE/d;/LIGHTTPD_ENABLED/d;' "${setupVars}"
     fi
     # echo the information to the user
     {