diff --git a/docs/handbook/third-party-plugins.rst b/docs/handbook/third-party-plugins.rst
index d77dee2d5..a189a5773 100644
--- a/docs/handbook/third-party-plugins.rst
+++ b/docs/handbook/third-party-plugins.rst
@@ -1,4 +1,4 @@
-Third Party Plugins
+Third-party plugins
 ===================
 
 Pillow uses a plugin model which allows users to add their own