diff --git a/include/wx/msw/private.h b/include/wx/msw/private.h
index 6cd7fc0328..abba5ac998 100644
--- a/include/wx/msw/private.h
+++ b/include/wx/msw/private.h
@@ -920,7 +920,8 @@ inline wxString wxGetFullModuleName()
 //      0x0502      Windows XP SP2, 2003 SP1
 //      0x0600      Windows Vista, 2008
 //      0x0601      Windows 7
-//      0x0602      Windows 8 (currently also returned for 8.1)
+//      0x0602      Windows 8 (currently also returned for 8.1 if program does not have a manifest indicating 8.1 support)
+//      0x0603      Windows 8.1 (currently only returned for 8.1 if program has a manifest indicating 8.1 support)
 //
 // for the other Windows versions 0 is currently returned
 enum wxWinVersion
@@ -950,7 +951,8 @@ enum wxWinVersion
 
     wxWinVersion_7 = 0x601,
 
-    wxWinVersion_8 = 0x602
+    wxWinVersion_8 = 0x602,
+    wxWinVersion_8_1 = 0x603
 };
 
 WXDLLIMPEXP_BASE wxWinVersion wxGetWinVersion();
diff --git a/src/msw/utils.cpp b/src/msw/utils.cpp
index 71f8cae2a4..49ded076cc 100644
--- a/src/msw/utils.cpp
+++ b/src/msw/utils.cpp
@@ -1361,6 +1361,9 @@ wxWinVersion wxGetWinVersion()
 
                         case 2:
                             return wxWinVersion_8;
+
+                        case 3:
+                            return wxWinVersion_8_1;
                     }
                     break;
             }