diff --git a/include/wx/clntdata.h b/include/wx/clntdata.h
index 3ff6030b50..b2b8cfa1b6 100644
--- a/include/wx/clntdata.h
+++ b/include/wx/clntdata.h
@@ -170,7 +170,7 @@ protected:
 // compiled to make wxMotif and wxGTK base libraries compatible
 #if defined(__WXMOTIF__) || wxABI_VERSION >= 20602
 
-#include <wx/vector.h>
+#include "wx/vector.h"
 
 struct WXDLLIMPEXP_BASE wxClientDataDictionaryPair
 {