Index: appveyor.yml
===================================================================
diff -u -rb7b00a04d72dc35037a80d36acf3316709c1c469 -rcf765c0d9d2b65a6ffefc31f50c99678ee34c335
--- appveyor.yml	(.../appveyor.yml)	(revision b7b00a04d72dc35037a80d36acf3316709c1c469)
+++ appveyor.yml	(.../appveyor.yml)	(revision cf765c0d9d2b65a6ffefc31f50c99678ee34c335)
@@ -89,7 +89,7 @@
 - ps: $env:DATESTRING=(get-date -UFormat "%Y%m%d").ToString()
 - set TARBALL="nsf_%APPVEYOR_REPO_BRANCH%_%TCLTAG%_win_%TOOLCHAIN%_%DATESTRING%_%APPVEYOR_BUILD_NUMBER%.zip"
 - if exist "%CD%\install" 7z a %TARBALL% %CD%\install\* 
-- if exist "%TARBALL%" C:\msys64\usr\bin\scp.exe -v -oStrictHostKeyChecking=no -i deploy_key %TARBALL% "sobernig@alice.wu.ac.at:/home/sobernig/builds"
+- if exist "%TARBALL%" C:\msys64\usr\bin\scp.exe -v -O -oStrictHostKeyChecking=no -i deploy_key %TARBALL% "sobernig@alice.wu.ac.at:/home/sobernig/builds"
 
 cache:
   - tclkit.exe -> appveyor.yml