diff --git a/setup.py b/setup.py
index e0d323bae6e3e887dcdc4b8b8142784fb33638fa..3bb3f3d7cbdd3b032aa2d8c89e7b085056c80b1f 100644
--- a/setup.py
+++ b/setup.py
@@ -8,14 +8,17 @@ import py_compile
 class APIGenBuild(build_py):
     def run(self):
         build_versions = ['3.0', '3.1', '3.2']
+        default_version = '3.2'
         for version in build_versions:
             target_dir = os.path.join(self.build_lib, 'netdb_client', f"api{version.replace('.', '')}")
             self.mkpath(target_dir)
             environ = os.environ.copy()
             environ['NETDB_VERSION'] = version
-            gen = subprocess.run(['net-api-generator', 'python', f'--output-dir={target_dir}'], check=True, env=environ)
+            subprocess.run(['net-api-generator', 'python', f'--output-dir={target_dir}'], check=True, env=environ)
         target_dir = os.path.join(self.build_lib, 'netdb_client')
-        gen = subprocess.run(['net-api-generator', 'python', f'--output-dir={target_dir}'], check=True, env=environ)
+        environ = os.environ.copy()
+        environ['NETDB_VERSION'] = default_version
+        subprocess.run(['net-api-generator', 'python', f'--output-dir={target_dir}'], check=True, env=environ)
         build_py.run(self)