diff --git a/appveyor.yml b/appveyor.yml
index 06e384f2..29bffe7b 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -10,8 +10,12 @@ environment:
   GOROOT: c:\go
   GOVERSION: 1.9.2
   TEST_EXTERNAL: 1
+  APPVEYOR_SAVE_CACHE_ON_ERROR: true
   appveyor_build_worker_cloud: pro-rs
 
+cache:
+  - C:\opencv -> appveyor_build_opencv.cmd
+
 install:
   - if not exist "C:\opencv" appveyor_build_opencv.cmd
   - set PATH=C:\Perl\site\bin;C:\Perl\bin;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\7-Zip;C:\Program Files\Microsoft\Web Platform Installer\;C:\Tools\PsTools;C:\Program Files (x86)\CMake\bin;C:\go\bin;C:\Tools\NuGet;C:\Program Files\LLVM\bin;C:\Tools\curl\bin;C:\ProgramData\chocolatey\bin;C:\Program Files (x86)\Yarn\bin;C:\Users\appveyor\AppData\Local\Yarn\bin;C:\Program Files\AppVeyor\BuildAgent\
diff --git a/appveyor_build_opencv.cmd b/appveyor_build_opencv.cmd
index 98572b82..7b8e8a9a 100644
--- a/appveyor_build_opencv.cmd
+++ b/appveyor_build_opencv.cmd
@@ -3,8 +3,6 @@ if not exist "C:\opencv\build" mkdir "C:\opencv\build"
 
 appveyor DownloadFile https://github.com/opencv/opencv/archive/3.3.1.zip -FileName c:\opencv\opencv-3.3.1.zip
 7z x c:\opencv\opencv-3.3.1.zip -oc:\opencv -y
-dir c:\opencv
-dir c:\opencv\opencv-3.3.1
 del c:\opencv\opencv-3.3.1.zip /q
 appveyor DownloadFile https://github.com/opencv/opencv_contrib/archive/3.3.1.zip -FileName c:\opencv\opencv_contrib-3.3.1.zip
 7z x c:\opencv\opencv_contrib-3.3.1.zip -oc:\opencv -y