diff --git a/appveyor.yml b/appveyor.yml
index 2c921a9999..0ff1bba80b 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,12 +1,14 @@
+clone_depth: 5
+
 platform:
   - x64
 
 build_script:
   - SET PATH=C:\msys64\mingw64\bin;%PATH%
   - gcc -v
-  - git clone -q --depth 1 git://github.com/nim-lang/csources.git csources
+  - git clone -q --depth 1 https://github.com/nim-lang/csources
   - cd csources
   - build64.bat
   - cd ..
-  - bin/nim koch
+  - bin\nim koch
   - koch boot