diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 4eb10f48d2704af3c66b6dda9298a8347d614351..f8077b3c8c8c2e7d0b09cf1310b961cf9c03d237 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -244,7 +244,7 @@ struct pci_ats {
 	int stu;	/* Smallest Translation Unit */
 	int qdep;	/* Invalidate Queue Depth */
 	int ref_cnt;	/* Physical Function reference count */
-	int is_enabled:1;	/* Enable bit is set */
+	unsigned int is_enabled:1;	/* Enable bit is set */
 };
 
 #ifdef CONFIG_PCI_IOV