diff --git a/src/hdmf/build/manager.py b/src/hdmf/build/manager.py
index c2cd67588..03f2856b8 100644
--- a/src/hdmf/build/manager.py
+++ b/src/hdmf/build/manager.py
@@ -768,7 +768,7 @@ def build(self, **kwargs):
         if manager is None:
             manager = BuildManager(self)
         builder = obj_mapper.build(container, manager, builder=builder, source=source, spec_ext=spec_ext, export=export)
-        
+
         # add additional attributes (namespace, data_type, object_id) to builder
         namespace, data_type = self.get_container_ns_dt(container)
         builder.set_attribute('namespace', namespace)