diff --git a/setup.py b/setup.py
index 68e7a7c549..b26471c430 100644
--- a/setup.py
+++ b/setup.py
@@ -47,6 +47,7 @@ def build_extension(self, ext):
 
     cmake_args = ['-DCMAKE_LIBRARY_OUTPUT_DIRECTORY=' + extdir,
                   '-DPYTHON_EXECUTABLE=' + sys.executable,
+                  '-DVT_TV_PYTHON_BINDINGS_ENABLED=ON',
                   '-DVTK_DIR=' + vtk_dir,
                   '-DVT_TV_N_THREADS=' + str(n_threads)]