diff --git a/payara-ping/Dockerfile b/payara-ping/Dockerfile
index b2dea82..a05b90c 100644
--- a/payara-ping/Dockerfile
+++ b/payara-ping/Dockerfile
@@ -2,5 +2,4 @@ FROM airhacks/payara
 MAINTAINER Adam Bien, adam-bien.com
 # For more information about ping see: https://github.com/AdamBien/ping/
 COPY ping.war ${DEPLOYMENT_DIR}
-ENV WAR ping.war
 HEALTHCHECK --interval=15s CMD curl --fail http://localhost:8080/ping/resources/pings/echo/+ || exit 1