diff --git a/appveyor.yml b/appveyor.yml
index f05e62c..e676b5d 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -27,9 +27,9 @@ install:
     
     7z x .\mapnik-win-sdk.7z -o".\lib\$env:Platform" | FIND /V "ing  "
     
-    git apply --directory=$Env:VS140COMNTOOLS\..\..\VC\Include .\lib\mutex.patch
+    git apply --unsafe-paths --directory=$Env:VS140COMNTOOLS\..\..\VC\Include .\lib\mutex.patch 
     
-    git apply --directory=$Env:VS140COMNTOOLS\..\..\VC\Include .\lib\thread.patch
+    git apply --unsafe-paths --directory=$Env:VS140COMNTOOLS\..\..\VC\Include .\lib\thread.patch
 test_script:
 - ps: vstest.console /Platform:$env:Platform /InIsolation /logger:Appveyor ".\NETMapnik.Test\bin\$env:Platform\$env:Configuration\NETMapnik.Test.dll"
 on_success: