diff --git a/.appveyor.yml b/.appveyor.yml
index 63e7a65..ccc4d75 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -22,5 +22,5 @@
   project: $(APPVEYOR_BUILD_FOLDER)\$(APPVEYOR_PROJECT_NAME).sln
 
 test_script:
-  - cd dist\test\$(CONFIGURATION)
+  - cd dist\test\%CONFIGURATION%
   - cbor_test.exe