diff --git a/appveyor.yml b/appveyor.yml
index 3266702..1f7448a 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -55,6 +55,7 @@ install:
 build: off
 
 test_script:
+  - PATH=%ADDPATH%%PATH%
   - if not "%CXXSTD%" == "" set CXXSTD=cxxstd=%CXXSTD%
   - if not "%ADDRESS_MODEL%" == "" set ADDRESS_MODEL=address-model=%ADDRESS_MODEL%
   - b2 -j3 libs/bind/test toolset=%TOOLSET% %CXXSTD% %ADDRESS_MODEL% variant=debug,release