diff --git a/README.md b/README.md
index aecf0a9..5b3097f 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ run `scripts/getAndroid.sh` from project's root directory to download and rebuil
 run `./gradlew :server:fatJar` the resulting jar file will be `server/build/server-1.0-all.jar`. Simply double click on it or run `java -jar server-1.0-all.jar`. The server will be running on `http://localhost:4567` open this url in your browser.
 ## running for development purposes
 ### The Server
-run `./gradlew :server:run -x :webUI:yarn_build --stacktrace` to run the server
+run `./gradlew :server:run -x :webUI:copyBuild --stacktrace` to run the server
 ### the webUI
 how to do it is described in `webUI/react/README.md` but for short,
  first cd into `webUI/react` then run `yarn` to install the node modules(do this only once)