1 files changed, 3 insertions, 1 deletions

diff --git a/editors/code/src/commands/syntax_tree.ts b/editors/code/src/commands/syntax_tree.ts
index 02ea9f166..7dde66ad1 100644
--- a/editors/code/src/commands/syntax_tree.ts
+++ b/editors/code/src/commands/syntax_tree.ts
@@ -22,6 +22,7 @@ export function syntaxTree(ctx: Ctx): Cmd {
             if (doc.languageId !== 'rust') return;
             afterLs(() => tdcp.eventEmitter.fire(tdcp.uri));
         },
+        null,
         ctx.subscriptions,
     );
 
@@ -30,6 +31,7 @@ export function syntaxTree(ctx: Ctx): Cmd {
             if (!editor || editor.document.languageId !== 'rust') return;
             tdcp.eventEmitter.fire(tdcp.uri);
         },
+        null,
         ctx.subscriptions,
     );
 
@@ -55,7 +57,7 @@ export function syntaxTree(ctx: Ctx): Cmd {
 
 // We need to order this after LS updates, but there's no API for that.
 // Hence, good old setTimeout.
-function afterLs(f: () => any) {
+function afterLs(f: () => void) {
     setTimeout(f, 10);
 }