diff --git a/.drone.yml b/.drone.yml
index b7ada9c..1258510 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -19,7 +19,7 @@ steps:
         - MYSQL_PASSWORD=${MYSQL_PASSWORD}
         - MYSQL_ROOT_PASSWORD=${MYSQL_ROOT_PASSWORD}
     ports:
-      - "$MYSQL_PORT:3306"
+      - 3306
 
 
 # docker image build (at least I'm trying)