diff --git a/src/typescript-service.ts b/src/typescript-service.ts
index 4f99419a4..9d91f5927 100644
--- a/src/typescript-service.ts
+++ b/src/typescript-service.ts
@@ -1330,6 +1330,16 @@ export class TypeScriptService {
             .startWith({ op: 'add', path: '', value: { changes: {} } as WorkspaceEdit } as Operation)
     }
 
+    /**
+     * The initialized notification is sent from the client to the server after the client received
+     * the result of the initialize request but before the client is sending any other request or
+     * notification to the server. The server can use the initialized notification for example to
+     * dynamically register capabilities.
+     */
+    public async initialized(): Promise<void> {
+        // nop
+    }
+
     /**
      * The document open notification is sent from the client to the server to signal newly opened
      * text documents. The document's truth is now managed by the client and the server must not try
@@ -1467,7 +1477,7 @@ export class TypeScriptService {
                     // Same score for all
                     .map(item => [1, navigateToItemToSymbolInformation(item, program, this.root)] as [number, SymbolInformation])
             } else {
-                const queryWithoutPackage = query && omit(query, 'package') as SymbolDescriptor
+                const queryWithoutPackage = query && omit<Partial<SymbolDescriptor>>(query, 'package')
                 // Require at least 2 properties to match (or all if less provided)
                 const minScore = Math.min(2, getPropertyCount(query))
                 const minScoreWithoutPackage = Math.min(2, getPropertyCount(queryWithoutPackage))