diff --git a/build_sdcard.sh b/build_sdcard.sh
index 671a637..c04bef7 100644
--- a/build_sdcard.sh
+++ b/build_sdcard.sh
@@ -184,9 +184,15 @@ sudo apt-get install -y htop git curl bash-completion jq dphys-swapfile
 # installs bandwidth monitoring for future statistics
 sudo apt-get install -y vnstat
 
-# preprae for display graphics mode 
+# prepare for display graphics mode
+# see https://github.com/rootzoll/raspiblitz/pull/334
 sudo apt-get install -y fbi
 
+# prepare dor display service
+# see https://github.com/rootzoll/raspiblitz/issues/88#issuecomment-471342311
+sudo apt-get install -y redis-server
+sudo -H pip3 install redis
+
 echo ""
 echo "*** ADDING MAIN USER admin ***"
 # based on https://github.com/Stadicus/guides/blob/master/raspibolt/raspibolt_20_pi.md#adding-main-user-admin