diff --git a/Engine/Ubuntu/README.md b/Engine/Ubuntu/README.md
index 6cff088..1433cf2 100644
--- a/Engine/Ubuntu/README.md
+++ b/Engine/Ubuntu/README.md
@@ -27,7 +27,7 @@ ssh-copy-id -i ~/.ssh/docker_rsa docker@$DHOST
 
 scp ~/.ssh/docker_rsa.pub docker@$DHOST:.ssh/
 scp ~/.ssh/docker_rsa docker@$DHOST:.ssh/
-ssh docker@$DHOST "chmod 600 .ssh/docker_rsa
+ssh docker@$DHOST "chmod 600 .ssh/docker_rsa"
 scp ~/.ssh/config docker@$DHOST:.ssh/
 ```
    This might also be a good point to update `~/.ssh/config` so specifying the user ID and identity file is not needed