diff --git a/setup.py b/setup.py
index b94748007..e7c634f7b 100644
--- a/setup.py
+++ b/setup.py
@@ -51,7 +51,8 @@ class CMakeBuild(build_ext):
         ]
 
         cfg = 'Debug' if self.debug else 'Release'
-        build_args = ['--config', cfg]
+        build_args = ['--config', cfg,
+                      '--parallel', '1']
 
         env = os.environ.copy()
         oldCxxFlags = env.get('CXXFLAGS', '')