diff --git a/src/core/nic.c b/src/core/nic.c
index dd02060f5..5b52bea1c 100644
--- a/src/core/nic.c
+++ b/src/core/nic.c
@@ -380,8 +380,8 @@ int dummy_connect ( struct nic *nic __unused ) {
 	return 1;
 }
 
-int dummy_irq ( struct nic *nic __unused, irq_action_t irq_action __unused ) {
-	return 1;
+void dummy_irq ( struct nic *nic __unused, irq_action_t irq_action __unused ) {
+	return;
 }
 
 /**************************************************************************