diff --git a/libcontainer/README.md b/libcontainer/README.md
index 2f63e64c..78e78e63 100644
--- a/libcontainer/README.md
+++ b/libcontainer/README.md
@@ -133,15 +133,15 @@ config := &configs.Config{
 	UidMappings: []configs.IDMap{
 		{
 			ContainerID: 0,
-			Host: 1000,
-			size: 65536,
+			HostID: 1000,
+			Size: 65536,
 		},
 	},
 	GidMappings: []configs.IDMap{
 		{
 			ContainerID: 0,
-			Host: 1000,
-			size: 65536,
+			HostID: 1000,
+			Size: 65536,
 		},
 	},
 	Networks: []*configs.Network{