diff --git a/include/wx/dataobj.h b/include/wx/dataobj.h
index 83207de611..4aa203de82 100644
--- a/include/wx/dataobj.h
+++ b/include/wx/dataobj.h
@@ -26,6 +26,7 @@
 #include "wx/string.h"
 #include "wx/bitmap.h"
 #include "wx/list.h"
+#include "wx/arrstr.h"
 
 // ============================================================================
 /*
diff --git a/include/wx/fontenum.h b/include/wx/fontenum.h
index 456590ae64..69829484e2 100644
--- a/include/wx/fontenum.h
+++ b/include/wx/fontenum.h
@@ -18,6 +18,7 @@
 #endif
 
 #include "wx/fontenc.h"
+#include "wx/arrstr.h"
 
 // ----------------------------------------------------------------------------
 // wxFontEnumerator enumerates all available fonts on the system or only the