diff --git a/.appveyor.yml b/.appveyor.yml
index 201182fe2ab17afbff42de4265dc599b68bacac5..3e803c3257393ef92777eca55d0fce6da548a0e9 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -18,7 +18,7 @@ build_script:
   - jom -j 4
 
 test_script:
-# - if "%CONFIG%" EQU "debug" ( debug\qgroundcontrol --unittest )
+  - if "%CONFIG%" EQU "debug" ( debug\qgroundcontrol --unittest )
 
 after_build:
   - if "%CONFIG%" EQU "installer" ( appveyor PushArtifact C:\projects\qgroundcontrol\release\qgroundcontrol-installer-win32.exe )