diff --git a/tools/travis-ci/run.sh b/tools/travis-ci/run.sh
index 7d6bd141..634d05dc 100755
--- a/tools/travis-ci/run.sh
+++ b/tools/travis-ci/run.sh
@@ -70,6 +70,8 @@ if [ "${TRAVIS_OS_NAME:-}" == "" ]; then
 		TRAVIS_OS_NAME=windows
 	elif uname -s | grep -i MINGW &> /dev/null; then
 		TRAVIS_OS_NAME=windows
+	elif [ "${APPVEYOR:-}" == "True"; then
+		TRAVIS_OS_NAME=windows
 	else
 		echo "Failed to guess OS"; exit 1
 	fi