diff --git a/tools/ci/build-test-ubuntu-support-systemd-unit.sh b/tools/ci/build-test-ubuntu-support-systemd-unit.sh
index e1afe5b53d..84f8affe86 100755
--- a/tools/ci/build-test-ubuntu-support-systemd-unit.sh
+++ b/tools/ci/build-test-ubuntu-support-systemd-unit.sh
@@ -40,7 +40,6 @@ $(clang --version)"
 
 msg "building sources"
 ./tools/iceoryx_build_test.sh systemd build-shared build-test
-cmake --build ./build --target install
 
 msg "running all tests"
 cd ./build
diff --git a/tools/iceoryx_build_test.sh b/tools/iceoryx_build_test.sh
index 823868c670..1fe563f6bb 100755
--- a/tools/iceoryx_build_test.sh
+++ b/tools/iceoryx_build_test.sh
@@ -58,7 +58,7 @@ COMPONENTS="iceoryx_platform iceoryx_hoofs iceoryx_posh iceoryx_introspection ic
 TOOLCHAIN_FILE=""
 CMAKE_C_FLAGS=""
 CMAKE_CXX_FLAGS=""
-USE_SYSTEMD_FLAGS=""
+USE_SYSTEMD_FLAGS="OFF"
 
 while (( "$#" )); do
   case "$1" in