diff --git a/docs/ref/forms/widgets.txt b/docs/ref/forms/widgets.txt
index c308b0c170..666780bc5d 100644
--- a/docs/ref/forms/widgets.txt
+++ b/docs/ref/forms/widgets.txt
@@ -813,8 +813,11 @@ Composite widgets
             field1 = forms.DateField(widget=SelectDateWidget(empty_label="Nothing"))
 
             # A custom empty label with tuple
-            field1 = forms.DateField(widget=SelectDateWidget(
-                empty_label=("Choose Year", "Choose Month", "Choose Day"))
+            field1 = forms.DateField(
+                widget=SelectDateWidget(
+                    empty_label=("Choose Year", "Choose Month", "Choose Day"),
+                ),
+            )
 
     .. versionchanged:: 1.9