diff --git a/labelme/app.py b/labelme/app.py
index 207a769cf..43b43b6a9 100644
--- a/labelme/app.py
+++ b/labelme/app.py
@@ -6,6 +6,7 @@
 import os
 import os.path as osp
 import re
+import types
 import webbrowser
 
 import imgviz
@@ -622,7 +623,7 @@ def __init__(
         self.labelList.customContextMenuRequested.connect(self.popLabelListMenu)
 
         # Store actions for further handling.
-        self.actions = utils.struct(
+        self.actions = types.SimpleNamespace(
             saveAuto=saveAuto,
             saveWithImageData=saveWithImageData,
             changeOutputDir=changeOutputDir,
@@ -715,7 +716,7 @@ def __init__(
 
         self.canvas.vertexSelected.connect(self.actions.removePoint.setEnabled)
 
-        self.menus = utils.struct(
+        self.menus = types.SimpleNamespace(
             file=self.menu(self.tr("&File")),
             edit=self.menu(self.tr("&Edit")),
             view=self.menu(self.tr("&View")),
diff --git a/labelme/utils/__init__.py b/labelme/utils/__init__.py
index 7fa2154fe..499d52811 100644
--- a/labelme/utils/__init__.py
+++ b/labelme/utils/__init__.py
@@ -23,7 +23,6 @@
 from .qt import newAction
 from .qt import addActions
 from .qt import labelValidator
-from .qt import struct
 from .qt import distance
 from .qt import distancetoline
 from .qt import fmtShortcut
diff --git a/labelme/utils/qt.py b/labelme/utils/qt.py
index 7fed3ad18..f6b3798c4 100644
--- a/labelme/utils/qt.py
+++ b/labelme/utils/qt.py
@@ -70,11 +70,6 @@ def labelValidator():
     return QtGui.QRegExpValidator(QtCore.QRegExp(r"^[^ \t].+"), None)
 
 
-class struct(object):
-    def __init__(self, **kwargs):
-        self.__dict__.update(kwargs)
-
-
 def distance(p):
     return sqrt(p.x() * p.x() + p.y() * p.y())