diff --git a/centipede/feature_set_test.cc b/centipede/feature_set_test.cc
index 8a796cdc..715c8eef 100644
--- a/centipede/feature_set_test.cc
+++ b/centipede/feature_set_test.cc
@@ -16,7 +16,6 @@
 
 #include <bitset>
 #include <cstddef>
-#include <cstdint>
 
 #include "gtest/gtest.h"
 #include "./centipede/feature.h"