diff --git a/sample/test/Makefile b/sample/test/Makefile
index 0a1a8724f..be9189c7a 100644
--- a/sample/test/Makefile
+++ b/sample/test/Makefile
@@ -4,7 +4,7 @@ all:
 	$(MCS) -o WidgetViewer.exe -r glib-sharp -r gdk-sharp -r gtk-sharp \
 	TestCheckButton.cs TestColorSelection.cs TestFileSelection.cs \
 	TestRadioButton.cs TestRange.cs TestStatusbar.cs TestToolbar.cs \
-	TestDialog.csTestFlipping.cs TestMenus.cs \
+	TestDialog.cs TestFlipping.cs TestMenus.cs \
 	WidgetViewer.cs
 clean:
 	rm -f *.exe *~