X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/e0a050e347b1ece07ad5f165ba1b1d16edbeae77..2e297951cd2eca56fac39fc21d7ebecc4cb51e52:/src/common/filefn.cpp

diff --git a/src/common/filefn.cpp b/src/common/filefn.cpp
index 7e806a16cc..c2614443c7 100644
--- a/src/common/filefn.cpp
+++ b/src/common/filefn.cpp
@@ -33,6 +33,7 @@
     #include "wx/crt.h"
 #endif
 
+#include "wx/dynarray.h"
 #include "wx/file.h"
 #include "wx/filename.h"
 #include "wx/dir.h"
@@ -1645,7 +1646,7 @@ bool wxSetWorkingDirectory(const wxString& d)
 #if defined(__OS2__)
     if (d[1] == ':')
     {
-        ::DosSetDefaultDisk(1 + wxToupper(d[0]) - _T('A'));
+        ::DosSetDefaultDisk(wxToupper(d[0]) - _T('A') + 1);
 	// do not call DosSetCurrentDir when just changing drive,
 	// since it requires e.g. "d:." instead of "d:"!
 	if (d.length() == 2)