--- a/external_tests/der_gtest/der_getint_unittest.cc
+++ b/external_tests/der_gtest/der_getint_unittest.cc
@@ -4,17 +4,16 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 #include "nss.h"
 #include "pk11pub.h"
 #include "secutil.h"
 #include <memory>
 #include <climits>
-#include <netinet/in.h>
 
 #include "gtest/gtest.h"
 #include "scoped_ptrs.h"
 
 namespace nss_test {
 
 class DERIntegerDecodingTest : public ::testing::Test {
  public: