diff --git a/src/common/string.cpp b/src/common/string.cpp
index 17c9019e5e..efc76beea9 100644
--- a/src/common/string.cpp
+++ b/src/common/string.cpp
@@ -1846,6 +1846,7 @@ int wxString::PrintfV(const wxChar* pszFormat, va_list argptr)
         // not OS/2 (not Innotek libc).
 #if !defined(__WXMSW__)                              && \
     !defined(__WXPALMOS__)                           && \
+    !defined(__OpenBSD__)                            && \
     !defined( __VMS )                                && \
     !(defined(__WXMAC__) && !defined(__WXMAC_OSX__)) && \
     !(defined(__EMX__) && !defined(__INNOTEK_LIBC__))