diff --git a/wombat/src/main/cpp/utils/Cache.cpp b/wombat/src/main/cpp/utils/Cache.cpp
index d9fed971..e3eaa720 100644
--- a/wombat/src/main/cpp/utils/Cache.cpp
+++ b/wombat/src/main/cpp/utils/Cache.cpp
@@ -1,3 +1,7 @@
+// Copyright (c) 2023-2024 CurtinFRC
+// Open Source Software, you can modify it according to the terms
+// of the MIT License at the root of this project
+
 #include "utils/Cache.h"
 
 #include "utils/Util.h"
diff --git a/wombat/src/main/include/utils/Cache.h b/wombat/src/main/include/utils/Cache.h
index beb6c420..f466f537 100644
--- a/wombat/src/main/include/utils/Cache.h
+++ b/wombat/src/main/include/utils/Cache.h
@@ -1,9 +1,13 @@
-#pragma once
+// Copyright (c) 2023-2024 CurtinFRC
+// Open Source Software, you can modify it according to the terms
+// of the MIT License at the root of this project
 
-#include <functional>
+#pragma once
 
 #include <units/time.h>
 
+#include <functional>
+
 namespace wom {
 namespace utils {
 
@@ -16,7 +20,7 @@ class Cached {
    *
    * @param supplier A function that sources the value.
    */
-  Cached(std::function<T()> supplier);
+  explicit Cached(std::function<T()> supplier);
 
   /**
    * Creates a new Cached<T> with the given supplier.