diff --git a/src/x11/clipbrd.cpp b/src/x11/clipbrd.cpp
index 80a7a15d25..c5abc23ce8 100644
--- a/src/x11/clipbrd.cpp
+++ b/src/x11/clipbrd.cpp
@@ -32,10 +32,12 @@ Atom  g_clipboardAtom   = 0;
 Atom  g_targetsAtom     = 0;
 #endif
 
+#ifdef __WXDEBUG__
 // the trace mask we use with wxLogTrace() - call
 // wxLog::AddTraceMask(TRACE_CLIPBOARD) to enable the trace messages from here
 // (there will be a *lot* of them!)
 static const wxChar *TRACE_CLIPBOARD = _T("clipboard");
+#endif // __WXDEBUG__
 
 //-----------------------------------------------------------------------------
 // reminder