diff --git a/oscar/notifyMessageBox.cpp b/oscar/notifyMessageBox.cpp
index b6822466..cfeaa6ea 100644
--- a/oscar/notifyMessageBox.cpp
+++ b/oscar/notifyMessageBox.cpp
@@ -6,7 +6,7 @@
  * License. See the file COPYING in the main directory of the source code
  * for more details. */
 
-#include "NotifyMessageBox.h"
+#include "notifyMessageBox.h"
 
 #define TEST_MACROS_ENABLEDoff
 #include <test_macros.h>