diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c
index 24bc884..a19dbcc 100644
--- a/drivers/ide/setup-pci.c
+++ b/drivers/ide/setup-pci.c
@@ -558,6 +558,8 @@
 
 	host->host_priv = priv;
 
+	host->irq_flags = IRQF_SHARED;
+
 	pci_set_drvdata(dev, host);
 
 	ret = do_ide_setup_pci_device(dev, d, 1);
@@ -606,6 +608,8 @@
 
 	host->host_priv = priv;
 
+	host->irq_flags = IRQF_SHARED;
+
 	pci_set_drvdata(pdev[0], host);
 	pci_set_drvdata(pdev[1], host);