diff --git a/appveyor.yml b/appveyor.yml
index 1f5391edf2..74fdb4c4e2 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -18,7 +18,7 @@ build:
 build_script:
   - md build
   - cd build
-  - cmake %CMAKE_ARGS% ..
+  - cmake -DCMAKE_BUILD_TYPE=Release ..
   - cmake --build .
   - cd ..