diff --git a/hw/net/smc91c111.c b/hw/net/smc91c111.c
index e9eb6f6c05..02be60c955 100644
--- a/hw/net/smc91c111.c
+++ b/hw/net/smc91c111.c
@@ -130,16 +130,16 @@ static void smc91c111_update(smc91c111_state *s)
     qemu_set_irq(s->irq, level);
 }
 
-static int smc91c111_can_receive(smc91c111_state *s)
+static bool smc91c111_can_receive(smc91c111_state *s)
 {
     if ((s->rcr & RCR_RXEN) == 0 || (s->rcr & RCR_SOFT_RST)) {
-        return 1;
+        return true;
     }
     if (s->allocated == (1 << NUM_PACKETS) - 1 ||
         s->rx_fifo_len == NUM_PACKETS) {
-        return 0;
+        return false;
     }
-    return 1;
+    return true;
 }
 
 static inline void smc91c111_flush_queued_packets(smc91c111_state *s)