diff --git a/HACKING.md b/HACKING.md
index add3c44..7eee7d2 100644
--- a/HACKING.md
+++ b/HACKING.md
@@ -66,6 +66,8 @@ def new_buffer(self, buffer_id, url):
 ```
     Execute command `eaf-stop-process' to kill old python process.
 
+    Execute command `eaf-start-process' to start new python process.
+
     Execute command `eaf-open' and type "eaf rocks!".
 ```