Forgot this in merge resolution.

Change-Id: Ieb26ec5fc333743b86d414ee558c978334647853
diff --git a/server/DummyNetwork.cpp b/server/DummyNetwork.cpp
index ff2cb41..a3b3435 100644
--- a/server/DummyNetwork.cpp
+++ b/server/DummyNetwork.cpp
@@ -20,6 +20,7 @@
 
 #define LOG_TAG "Netd"
 #include "log/log.h"
+#include "errno.h"
 
 const char* DummyNetwork::INTERFACE_NAME = "dummy0";