diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index bce34ad3..3cd8c150 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -4,12 +4,13 @@ IF (WIN32)
   SET(MQTT_TEST_BROKER "tcp://mqtt.iotree.co.uk:1883" CACHE STRING "Hostname of a test MQTT broker to use")
   SET(MQTT_TEST_PROXY "tcp://localhost:1883" CACHE STRING "Hostname of the test proxy to use")
   SET(MQTT_SSL_HOSTNAME "mqtt.iotree.co.uk" CACHE STRING "Hostname of a test SSL MQTT broker to use")
+  SET(CERTDIR $ENV{APPVEYOR_BUILD_FOLDER}/test/ssl)
 ELSE ()
   SET(MQTT_TEST_BROKER "tcp://localhost:1883" CACHE STRING "Hostname of a test MQTT broker to use")
   SET(MQTT_TEST_PROXY "tcp://localhost:1884" CACHE STRING "Hostname of the test proxy to use")
   SET(MQTT_SSL_HOSTNAME "localhost" CACHE STRING "Hostname of a test SSL MQTT broker to use")
+  SET(CERTDIR $ENV{TRAVIS_BUILD_DIR}/test/ssl)
 ENDIF ()
-SET(CERTDIR $ENV{TRAVIS_BUILD_DIR}/test/ssl )
 
 IF (PAHO_WITH_SSL)
     SET(OPENSSL_SEARCH_PATH "" CACHE PATH "Directory containing OpenSSL libraries and includes")