diff --git a/docker-compose.yml b/docker-compose.yml
index 98c67b1..55a69c1 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -7,7 +7,7 @@ services:
     restart: unless-stopped
     environment: # check https://github.com/vouch/vouch-proxy/blob/master/config/config.yml_example
       VOUCH_LOGLEVEL: "debug"
-      testing: false
+      testing: "false"
       VOUCH_PORT: "9090"
       VOUCH_LISTEN: "0.0.0.0"
       OUCH_WRITETIMEOUT: "15"