diff --git a/appveyor.yml b/appveyor.yml
index 300faa15..6f9e9c86 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -71,4 +71,4 @@ install:
 build: off
 
 test_script:
-  - b2 -j%NUMBER_OF_PROCESSORS% libs/fusion/test toolset=%TOOLSET%
+  - b2 -j%NUMBER_OF_PROCESSORS% --hash libs/fusion/test toolset=%TOOLSET%