diff --git a/server/src/server.ts b/server/src/server.ts
index 696247abf..9bf74d1e6 100644
--- a/server/src/server.ts
+++ b/server/src/server.ts
@@ -1135,7 +1135,7 @@ function onMessage(msg: p.Message) {
               ],
               tokenModifiers: [],
             },
-            documentSelector: null,
+            documentSelector: [{ scheme: "file", language: "rescript" }],
             // TODO: Support range for full, and add delta support
             full: true,
           },