diff --git a/src/PIL/ImageShow.py b/src/PIL/ImageShow.py
index 130e21d05..cd0737c36 100644
--- a/src/PIL/ImageShow.py
+++ b/src/PIL/ImageShow.py
@@ -187,7 +187,10 @@ class UnixViewer(Viewer):
 
 
 class DisplayViewer(UnixViewer):
-    """The ImageMagick ``display`` command."""
+    """
+    The ImageMagick ``display`` command.
+    This viewer supports the ``title`` parameter.
+    """
 
     def get_command_ex(self, file, title=None, **options):
         command = executable = "display"