diff --git a/util/filelock_test.cc b/util/filelock_test.cc
index 00790a024220085354b07a91377375f6f13c5c74..611cd46c6484be6fd3fb386acae625afdc254ea6 100644
--- a/util/filelock_test.cc
+++ b/util/filelock_test.cc
@@ -7,6 +7,10 @@
 #include "rocksdb/env.h"
 
 #include <fcntl.h>
+#ifdef __FreeBSD__
+#include <sys/types.h>
+#include <sys/wait.h>
+#endif
 #include <vector>
 #include "test_util/testharness.h"
 #include "util/coding.h"