diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index f43f34d3214af1053c908a554a44c1fde1a5d27e..5d029df538fe1b5f0b636b88920302f26b22d493 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -45,6 +45,7 @@ test_maxima:
     POSTGRES_PASSWORD: ""
     POSTGRES_HOST_AUTH_METHOD: "trust"
     TRAVIS_BUILD_DIR: "$CI_PROJECT_DIR"
+    TEST_URL: "http://2020042000.kub00.math.uni-goettingen.de/MaximaPool"
   tags:
     - docker
   script:
diff --git a/testimage.sh b/testimage.sh
index 4a16958aee9de66208d80131984019f296b87f3c..3773c31d87a07f7b2b0fb3ba66f03d9fe05c3ee3 100644
--- a/testimage.sh
+++ b/testimage.sh
@@ -34,7 +34,7 @@ moodle-plugin-ci add-config 'define("QTYPE_STACK_TEST_CONFIG_PLATFORM",        "
 moodle-plugin-ci add-config 'define("QTYPE_STACK_TEST_CONFIG_MAXIMAVERSION",   "5.41.0");'
 moodle-plugin-ci add-config 'define("QTYPE_STACK_TEST_CONFIG_CASTIMEOUT",      "10");'
 moodle-plugin-ci add-config 'define("QTYPE_STACK_TEST_CONFIG_CASRESULTSCACHE", "db");'
-moodle-plugin-ci add-config 'define("QTYPE_STACK_TEST_CONFIG_MAXIMACOMMAND",   "http://2020042000.kub00.math.uni-goettingen.de/goemaxima");'
+moodle-plugin-ci add-config 'define("QTYPE_STACK_TEST_CONFIG_MAXIMACOMMAND",   "'"$TEST_URL"'");'
 moodle-plugin-ci add-config 'define("QTYPE_STACK_TEST_CONFIG_PLOTCOMMAND",     "gnuplot");'
 moodle-plugin-ci add-config 'define("QTYPE_STACK_TEST_CONFIG_MAXIMALIBRARIES", "stats, distrib, descriptive, simplex");'
 moodle-plugin-ci add-config 'define("QTYPE_STACK_TEST_CONFIG_CASDEBUGGING",    "0");'