diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8cd74bc..c3df5d1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,12 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](http://keepachangelog.com/) and this project adheres to [Semantic Versioning](http://semver.org/).
 
+## [Unreleased]
+
+### Fixed
+
+- Fixes [#805](https://github.com/eamodio/vscode-gitlens/issues/805) - Version 9.9.1 breaks working tree comparison
+
 ## [9.9.1] - 2019-07-23
 
 ### Fixed
diff --git a/src/views/nodes/compareResultsNode.ts b/src/views/nodes/compareResultsNode.ts
index 6fcca73..823a7f1 100644
--- a/src/views/nodes/compareResultsNode.ts
+++ b/src/views/nodes/compareResultsNode.ts
@@ -68,7 +68,7 @@ export class CompareResultsNode extends SubscribeableViewNode<CompareView> {
                     this,
                     this.uri.repoPath!,
                     this._ref1.ref,
-                    this._ref2.ref || 'HEAD',
+                    this._ref2.ref,
                     this.getFilesQuery.bind(this)
                 )
             ];