diff --git a/docker/docker-entrypoint.sh b/docker/docker-entrypoint.sh
index 4a49924e7..1855d021c 100755
--- a/docker/docker-entrypoint.sh
+++ b/docker/docker-entrypoint.sh
@@ -58,7 +58,9 @@ if [ -z "$REDIS_HOST" ]; then
   export REDIS_HOST="cache"
 fi
 
-export REDIS_URL="redis://$REDIS_HOST"
+if [ -z "$REDIS_URL" ]; then
+  export REDIS_URL="redis://$REDIS_HOST"
+fi
 
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 # SHARED #