diff --git a/tools/ci/bsp_buildings.py b/tools/ci/bsp_buildings.py
index ba78c2a1410..e5289c58f85 100644
--- a/tools/ci/bsp_buildings.py
+++ b/tools/ci/bsp_buildings.py
@@ -119,8 +119,8 @@ def build_bsp_cmake(bsp, scons_args=''):
         nproc = multiprocessing.cpu_count()
         
         run_cmd('scons --target=cmake')
-        os.mkdir('build')
-        os.chdir('build')
+        os.mkdir(f'{rtt_root}/bsp/{bsp}/build')
+        os.chdir(f'{rtt_root}/bsp/{bsp}/build')
         run_cmd('cmake .. -G Ninja')
         _, res = run_cmd(f'ninja -j{nproc}')