diff --git a/caddyhttp/httpserver/plugin.go b/caddyhttp/httpserver/plugin.go
index 13f1291f5..9f62092b7 100644
--- a/caddyhttp/httpserver/plugin.go
+++ b/caddyhttp/httpserver/plugin.go
@@ -490,6 +490,7 @@ var directives = []string{
 	"hugo",      // github.com/hacdias/caddy-hugo
 	"mailout",   // github.com/SchumacherFM/mailout
 	"awslambda", // github.com/coopernurse/caddy-awslambda
+	"grpc",      // github.com/pieterlouw/caddy-grpc
 }
 
 const (