diff --git a/.appveyor.yml b/.appveyor.yml
index d2d7263b..141b4a2c 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -21,7 +21,7 @@ install:
 before_build:
   - mkdir build
   - cd build
-  - cmake .. -G "%cmake_generator%" -DDYNARMIC_USE_SYSTEM_BOOST=0 -DBoost_INCLUDE_DIRS=%cd%/../externals/boost
+  - cmake .. -G "%cmake_generator%" -DBoost_INCLUDE_DIRS=%cd%/../externals/boost
   - cd ..
 
 build: