diff --git a/src/msw/textentry.cpp b/src/msw/textentry.cpp
index 0a379aedf2..3acadace87 100644
--- a/src/msw/textentry.cpp
+++ b/src/msw/textentry.cpp
@@ -92,6 +92,10 @@ DEFINE_GUID(wxIID_IAutoCompleteDropDown,
 DEFINE_GUID(wxCLSID_AutoComplete,
     0x00bb2763, 0x6a77, 0x11d0, 0xa5, 0x35, 0x00, 0xc0, 0x4f, 0xd7, 0xd0, 0x62);
 
+#ifndef ACDD_VISIBLE
+    #define ACDD_VISIBLE 0x0001
+#endif
+
 // Small helper class which can be used to ensure thread safety even when
 // wxUSE_THREADS==0 (and hence wxCriticalSection does nothing).
 class CSLock