diff --git a/daemon/container_linux.go b/daemon/container_linux.go
index d250f4feee..72e8409275 100644
--- a/daemon/container_linux.go
+++ b/daemon/container_linux.go
@@ -761,7 +761,9 @@ func (container *Container) AllocateNetwork() error {
 		return fmt.Errorf("Updating join info failed: %v", err)
 	}
 
-	container.WriteHostConfig()
+	if err := container.WriteHostConfig(); err != nil {
+		return err
+	}
 
 	return nil
 }