diff --git a/src/s6/debian-root/usr/local/bin/bash_functions.sh b/src/s6/debian-root/usr/local/bin/bash_functions.sh
index 14c766a..e3e8197 100644
--- a/src/s6/debian-root/usr/local/bin/bash_functions.sh
+++ b/src/s6/debian-root/usr/local/bin/bash_functions.sh
@@ -420,7 +420,7 @@ setup_web_theme(){
     # If an invalid theme name was supplied, setup WEBTHEME to use the default-light theme.
     if [ -n "${WEBTHEME}" ]; then
         case "${WEBTHEME}" in
-        "default-dark" | "default-darker" | "default-light" | "default-auto" | "lcars")
+        "default-dark" | "default-darker" | "default-light" | "default-auto" | "high-contrast" | "high-contrast-dark" | "lcars")
             echo "  [i] Setting Web Theme based on WEBTHEME variable, using value ${WEBTHEME}"
             change_setting "WEBTHEME" "${WEBTHEME}"
             ;;