diff --git a/appveyor.sh b/appveyor.sh
index 714f185e67..c5381890ad 100644
--- a/appveyor.sh
+++ b/appveyor.sh
@@ -55,7 +55,6 @@ if [ "${BUILD_SYSTEM}" = 'CMake' ]; then
     [ -n "${WINTARGET:-}" ] && options+=" -DCURL_TARGET_WINDOWS_VERSION=${WINTARGET}"
     [ "${OPENSSL}" = 'ON' ] && options+=" -DOPENSSL_ROOT_DIR=${openssl_root_win}"
     [ -n "${CURLDEBUG:-}" ] && options+=" -DENABLE_CURLDEBUG=${CURLDEBUG}"
-    [ "${TFLAGS}" = 'skiprun' ] && options+=' -D_CURL_SKIP_BUILD_CERTS=ON'
     if [ "${APPVEYOR_BUILD_WORKER_IMAGE}" = 'Visual Studio 2013' ]; then
       mkdir "_bld${_chkprefill}"
       cd "_bld${_chkprefill}"