diff --git a/libnetwork/drivers/bridge/netlink_deprecated_linux_notarm.go b/libnetwork/drivers/bridge/netlink_deprecated_linux_notarm.go
index 0852d0f165..df526952f7 100644
--- a/libnetwork/drivers/bridge/netlink_deprecated_linux_notarm.go
+++ b/libnetwork/drivers/bridge/netlink_deprecated_linux_notarm.go
@@ -1,4 +1,4 @@
-// +build !arm,!ppc64,!ppc64le,!s390x
+// +build !arm,!ppc64,!ppc64le
 
 package bridge
 
diff --git a/libnetwork/drivers/bridge/netlink_deprecated_linux_s390x.go b/libnetwork/drivers/bridge/netlink_deprecated_linux_s390x.go
deleted file mode 100644
index 2d9abdc2ce..0000000000
--- a/libnetwork/drivers/bridge/netlink_deprecated_linux_s390x.go
+++ /dev/null
@@ -1,7 +0,0 @@
-// +build s390x
-
-package bridge
-
-func ifrDataByte(b byte) uint8 {
-	return uint8(b)
-}