diff --git a/Dockerfile b/Dockerfile
index 306567d1..c04865ae 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -57,6 +57,8 @@ ARG SENTRY_CURRENT_ENV
 ARG PS1="$SENTRY_CURRENT_ENV > "
 ARG TZ="Europe/Zurich"
 
+# Custom ENV vars for Puzzletime
+ARG SKIP_MEMCACHE_CHECK=true
 
 #################################
 #          Build Stage          #