diff --git a/packages/flutter/lib/material.dart b/packages/flutter/lib/material.dart
index 7a6c16c73f..7d33f3d2bf 100644
--- a/packages/flutter/lib/material.dart
+++ b/packages/flutter/lib/material.dart
@@ -35,7 +35,7 @@ export 'src/material/drawer_header.dart';
 export 'src/material/drawer_item.dart';
 export 'src/material/drop_down.dart';
 export 'src/material/expand_icon.dart';
-export 'src/material/expansion_panels.dart';
+export 'src/material/expansion_panel.dart';
 export 'src/material/flat_button.dart';
 export 'src/material/flexible_space_bar.dart';
 export 'src/material/floating_action_button.dart';
diff --git a/packages/flutter/lib/src/material/expansion_panels.dart b/packages/flutter/lib/src/material/expansion_panel.dart
similarity index 100%
rename from packages/flutter/lib/src/material/expansion_panels.dart
rename to packages/flutter/lib/src/material/expansion_panel.dart
diff --git a/packages/flutter/test/material/expansion_panels_test.dart b/packages/flutter/test/material/expansion_panel_test.dart
similarity index 100%
rename from packages/flutter/test/material/expansion_panels_test.dart
rename to packages/flutter/test/material/expansion_panel_test.dart