diff --git a/plinth/modules/letsencrypt/__init__.py b/plinth/modules/letsencrypt/__init__.py
index daa7e5ba5..3f9978f37 100644
--- a/plinth/modules/letsencrypt/__init__.py
+++ b/plinth/modules/letsencrypt/__init__.py
@@ -30,7 +30,7 @@ from plinth.utils import format_lazy
 
 version = 1
 
-is_essential = False
+is_essential = True
 
 depends = ['names']