diff --git a/win/README.md b/win/README.md
index 205e1d78c183873bfb14644fc3ede3f956a4a37c..66d7b527dcbfab4f74e080f0af5e8cd705244deb 100644
--- a/win/README.md
+++ b/win/README.md
@@ -18,6 +18,15 @@ ## Development
 * Now go to the git root dir `cd ..`
 * Launch Gajim `./launch.py`
 
+### GtkInspector
+
+For Gtk Inspector to work, add the following registry key
+```
+HKEY_CURRENT_USER\Software\GSettings\org\gtk\settings\debug
+DWORD enable-inspector-keybinding = 1
+```
+
+Afterwards press CTRL + SHIFT + I, to  activate GtkInspector
 
 ## Build Gajim / Create an Installer