diff --git a/include/wx/wxchar.h b/include/wx/wxchar.h
index 84e8ee28f2..e237d86e59 100644
--- a/include/wx/wxchar.h
+++ b/include/wx/wxchar.h
@@ -129,6 +129,7 @@
 #elif defined(__BORLANDC__) && (__BORLANDC__ >= 0x520)
     #define wxHAVE_TCHAR_SUPPORT
     #include <ctype.h>
+    #include <memory.h>
 #elif defined(__WATCOMC__)
     #define wxHAVE_TCHAR_SUPPORT
 #elif defined(__DMC__)