diff --git a/include/wx/debugrpt.h b/include/wx/debugrpt.h
index 48b640c408..befd84d6f8 100644
--- a/include/wx/debugrpt.h
+++ b/include/wx/debugrpt.h
@@ -16,6 +16,7 @@
 #if wxUSE_DEBUGREPORT && wxUSE_XML
 
 #include "wx/string.h"
+#include "wx/arrstr.h"
 
 class WXDLLIMPEXP_XML wxXmlNode;