diff --git a/src/locate/locate.js b/src/locate/locate.js
index f1e72388f..9d872a5bf 100644
--- a/src/locate/locate.js
+++ b/src/locate/locate.js
@@ -67,7 +67,7 @@ export class Locate {
 		this.tree = {};
 		this.walkQueue = this._createWalkQueue();
 		this.walkPromise = null;
-		this.parseQueue = async.queue((task, callback) => task().then(() => callback), SINGLE_FILE_PARSE_CONCURRENCY);
+		this.parseQueue = async.queue((task, callback) => task().then(() => callback()), SINGLE_FILE_PARSE_CONCURRENCY);
 	}
 	listInFile(absPath) {
 		const waitForParse = (absPath in this.tree) ? Promise.resolve() : this.parse(absPath);