diff --git a/Dockerfile b/Dockerfile
index 809c056..34b4037 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -75,7 +75,7 @@ RUN \
 	'{ \
 	  "listeners": { \
 	    "*:9080": { "pass": "routes" }, \
-	    "*:9443": { "pass": "routes", "tls": { "certificates": "default" } } \
+	    "*:9443": { "pass": "routes", "tls": { "certificate": "default" } } \
           }, \
 	  "routes": [ \
 	    { "match": { "uri": "/plugins/*.php" }, "action": { "pass": "applications/direct_php" } }, \