diff --git a/hw/sb16.c b/hw/sb16.c
index bc17d6f067..ac41a133fa 100644
--- a/hw/sb16.c
+++ b/hw/sb16.c
@@ -1409,6 +1409,7 @@ int SB16_init (qemu_irq *pic)
 
     s->cmd = -1;
     s->pic = isa_reserve_irq (conf.irq);
+    s->irq = conf.irq;
     s->dma = conf.dma;
     s->hdma = conf.hdma;
     s->port = conf.port;