diff --git a/src/dvb/dvb_preconf.c b/src/dvb/dvb_preconf.c
index 0cbfc6e0..ee6098ff 100644
--- a/src/dvb/dvb_preconf.c
+++ b/src/dvb/dvb_preconf.c
@@ -64,7 +64,9 @@ dvb_mux_preconf_add(th_dvb_adapter_t *tda, const struct mux *m, int num,
       break;
       
     case FE_QPSK:
-      dmc.dmc_fe_delsys = SYS_DVBS;
+      #ifdef SYS_DVBS
+        dmc.dmc_fe_delsys = SYS_DVBS;
+      #endif
       dmc.dmc_fe_params.u.qpsk.symbol_rate = m->symrate;
       dmc.dmc_fe_params.u.qpsk.fec_inner   = m->fec;