diff --git a/pylint_django/checkers/forms.py b/pylint_django/checkers/forms.py
index 7605ec38..007504cb 100644
--- a/pylint_django/checkers/forms.py
+++ b/pylint_django/checkers/forms.py
@@ -1,5 +1,5 @@
 """Models."""
-from astroid.nodes import Assign, ClassDef
+from astroid.nodes import Assign, AssignName, ClassDef
 
 from pylint.interfaces import IAstroidChecker
 from pylint.checkers.utils import check_messages
@@ -41,7 +41,8 @@ def visit_classdef(self, node):
             return
 
         for child in meta.get_children():
-            if not isinstance(child, Assign):
+            if (not isinstance(child, Assign)
+                    or not isinstance(child.targets[0], AssignName)):
                 continue
 
             if child.targets[0].name == 'exclude':
diff --git a/pylint_django/tests/input/func_noerror_forms_py33.py b/pylint_django/tests/input/func_noerror_forms_py33.py
index 38912282..e8a5291c 100644
--- a/pylint_django/tests/input/func_noerror_forms_py33.py
+++ b/pylint_django/tests/input/func_noerror_forms_py33.py
@@ -31,3 +31,12 @@ class Meta:
 class TestModelFormSubclass(forms.ModelForm):
     class Meta:
         pass
+
+
+class TestFormWidgetAssignment(forms.Form):
+
+    multi_field = forms.MultipleChoiceField(choices=[('1', 'First'), ('2', 'Second')])
+
+    class Meta:
+        widgets = {}
+        widgets['multi_field'] = forms.CheckboxSelectMultiple