Make the script rebase the right repository (#3025)
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index ea956ea..5597695 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -141,15 +141,16 @@
### Building all the builds that matter on Linux and Android
-The following script will update all the builds that matter if you're developing on Linux and testing on Android:
+The following script will update all the builds that matter if you're developing on Linux and testing on Android and created the `.gclient` file in `~/dev/engine`:
```bash
set -ex
-cd ~/dev/engine/src
+cd ~/dev/engine/src/flutter
git fetch upstream
git rebase upstream/master
gclient sync
+cd ..
flutter/tools/gn --unoptimized --runtime-mode=debug
flutter/tools/gn --android --unoptimized --runtime-mode=debug
