diff --git a/.appveyor.yml b/.appveyor.yml
index 486eb2d78..e34cc0af6 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -32,7 +32,7 @@ environment:
 build_script:
   - md build
   - cd build
-  - cmake -G "%GENERATOR%" -T "%TOOLSET%" ..
+  - cmake -G "%GENERATOR%" -T "%TOOLSET%" -DPK3_QUIET_ZIPDIR=YES ..
   - cmake --build . --config "%CONFIGURATION%" -- /verbosity:minimal
 
 after_build:
diff --git a/.travis.yml b/.travis.yml
index 40466de09..4db8a3ec5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -98,7 +98,7 @@ script:
   - echo ${TRAVIS_BUILD_DIR}
   - mkdir build
   - cd build
-  - cmake ${CMAKE_OPTIONS} ..
+  - cmake ${CMAKE_OPTIONS} -DPK3_QUIET_ZIPDIR=YES ..
   - make -j2
 
 notifications: