diff --git a/ci_setup.py b/ci_setup.py
index cea8331237c88..32a147042febb 100644
--- a/ci_setup.py
+++ b/ci_setup.py
@@ -229,7 +229,7 @@ def run(self):
       execute_command('echo $PYTHONPATH')
     elif get_os_name() != 'win':
       # compile ..
-      os.makedirs('build')
+      os.makedirs('build', exist_ok=True)
       execute_command('cd build && cmake ..')
       execute_command('cd build && make -j 10')
     return