diff --git a/eo/src/eoCtrlCContinue.cpp b/eo/src/eoCtrlCContinue.cpp
index deec4176..51166ef2 100644
--- a/eo/src/eoCtrlCContinue.cpp
+++ b/eo/src/eoCtrlCContinue.cpp
@@ -42,9 +42,11 @@ void signal_handler( int sig )
 // ---------------------------
 {
     // --- On veut la paix, jusqu'a la fin ---
+#ifdef SIGQUIT
     signal( SIGINT, SIG_IGN );
     signal( SIGQUIT, SIG_IGN );
     std::cerr << "Ctrl C entered ... closing down" << std::endl ;
     arret_demande = true;
+#endif
 }