diff --git a/hw/e1000.c b/hw/e1000.c
index b5c26e0dd8..4573f1301e 100644
--- a/hw/e1000.c
+++ b/hw/e1000.c
@@ -223,8 +223,10 @@ static const uint32_t mac_reg_init[] = {
 static void
 set_interrupt_cause(E1000State *s, int index, uint32_t val)
 {
-    if (val)
+    if (val && (E1000_DEVID >= E1000_DEV_ID_82547EI_MOBILE)) {
+        /* Only for 8257x */
         val |= E1000_ICR_INT_ASSERTED;
+    }
     s->mac_reg[ICR] = val;
     s->mac_reg[ICS] = val;
     qemu_set_irq(s->dev.irq[0], (s->mac_reg[IMS] & s->mac_reg[ICR]) != 0);