diff --git a/client/my-sites/plugins/plugin-compatibility.js b/client/my-sites/plugins/plugin-compatibility.js
index 4035767fa07b3..18c698b91830b 100644
--- a/client/my-sites/plugins/plugin-compatibility.js
+++ b/client/my-sites/plugins/plugin-compatibility.js
@@ -48,6 +48,7 @@ const incompatiblePlugins = new Set( [
 	'wpmu-database-reset',
 	'wps-hide-login',
 	'z-inventory-manager',
+	'wp-downgrade',
 
 	// backup
 	'backup-wd',