diff --git a/.appveyor.yml b/.appveyor.yml
index a8884156..68e9bc92 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -1,6 +1,3 @@
-environment:
-  CTEST_OUPTUT_ON_FAILURE: ON
-
 branches:
   except:
     - gh-pages
@@ -16,4 +13,4 @@ build_script:
   - cmake --build .
 
 test_script:
-  - ctest
+    - ctest --output-on-failure