diff --git a/setup.py b/setup.py
index d2148f67fe08c34c265553442af357718ee2fc0f..306d15f37b0eb8ed4cb8d95e2118ad300ac1fc40 100644
--- a/setup.py
+++ b/setup.py
@@ -53,7 +53,7 @@ def get_config_schema():
 
         default_libs = []
         default_cxxflags = default_cxxflags + [
-                '-stdlib=libc++',
+                '-stdlib=libc++', '-mmacosx-version-min=10.7',
                 '-arch', 'i386', '-arch', 'x86_64'
                 ]