1 files changed, 3 insertions, 0 deletions
diff --git a/setup.py b/setup.py
index 5c1b38230e..77524d1c44 100644
--- a/setup.py
+++ b/setup.py
@@ -546,6 +546,9 @@ class PyBuildExt(build_ext):
         # CSV files
         exts.append( Extension('_csv', ['_csv.c']) )
 
+        # POSIX subprocess module helper.
+        exts.append( Extension('_posixsubprocess', ['_posixsubprocess.c']) )
+
         # socket(2)
         exts.append( Extension('_socket', ['socketmodule.c'],
                                depends = ['socketmodule.h']) )