diff --git a/tools/code_cache/mkcodecache.cc b/tools/code_cache/mkcodecache.cc
index fabb6a1a5d2f4d..a3f15f28092068 100644
--- a/tools/code_cache/mkcodecache.cc
+++ b/tools/code_cache/mkcodecache.cc
@@ -3,7 +3,6 @@
 #include <iostream>
 #include <sstream>
 #include <string>
-#include <vector>
 
 #include "cache_builder.h"
 #include "debug_utils-inl.h"