diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index b5fa19a033c0..9ed5de38e372 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -1437,7 +1437,7 @@ static bool validate_ipv4_net_dev(struct net_device *net_dev,
 		return false;
 
 	memset(&fl4, 0, sizeof(fl4));
-	fl4.flowi4_iif = net_dev->ifindex;
+	fl4.flowi4_oif = net_dev->ifindex;
 	fl4.daddr = daddr;
 	fl4.saddr = saddr;