diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 813ea6ba..7bb9d826 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -3,11 +3,8 @@ PROJECT(mqtt-tests C)
 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")
-IF (WIN32)
-  SET(CERTDIR $ENV{APPVEYOR_BUILD_FOLDER}/test/ssl)
-ELSE ()
-  SET(CERTDIR $ENV{TRAVIS_BUILD_DIR}/test/ssl)
-ENDIF ()
+
+SET(CERTDIR ${CMAKE_SOURCE_DIR}/test/ssl)
 
 
 IF (PAHO_WITH_SSL)