diff --git a/dev/Setting-Up-a-Metasploit-Development-Environment.md b/dev/Setting-Up-a-Metasploit-Development-Environment.md
index bd9c92db5b..8971ce7cf5 100644
--- a/dev/Setting-Up-a-Metasploit-Development-Environment.md
+++ b/dev/Setting-Up-a-Metasploit-Development-Environment.md
@@ -650,7 +650,7 @@ from upstream, you're going to want to track it. In your
 ```
 git remote add upstream github:rapid7/metasploit-framework.git
 git fetch upstream
-git checkout upstream-master --track upstream/master
+git checkout -b upstream-master --track upstream/master
 ```
 
 Now, you have a branch that points to upstream (the `rapid7` fork)