diff --git a/src/msw/crashrpt.cpp b/src/msw/crashrpt.cpp
index d1a372467d..d2a303abbe 100644
--- a/src/msw/crashrpt.cpp
+++ b/src/msw/crashrpt.cpp
@@ -227,7 +227,7 @@ bool wxCrashReportImpl::Generate(int flags, EXCEPTION_POINTERS *ep)
     }
     else // dbghelp.dll couldn't be loaded
     {
-        Output(wxDbgHelpDLL::GetErrorMessage());
+        Output(_T("%s"), wxDbgHelpDLL::GetErrorMessage().c_str());
     }
 #else // !wxUSE_DBGHELP
     wxUnusedVar(flags);