diff --git a/extensions/ql-vscode/gulpfile.ts/typescript.ts b/extensions/ql-vscode/gulpfile.ts/typescript.ts
index af00de84d..0f02de6a7 100644
--- a/extensions/ql-vscode/gulpfile.ts/typescript.ts
+++ b/extensions/ql-vscode/gulpfile.ts/typescript.ts
@@ -46,6 +46,7 @@ export function compileEsbuild() {
         platform: "node",
         target: "es2020",
         sourcemap: "linked",
+        sourceRoot: "..",
         loader: {
           ".node": "copy",
         },