diff --git a/src/kernel/for_each_fn.cpp b/src/kernel/for_each_fn.cpp
index 6b35e04b1..0e4e156e9 100644
--- a/src/kernel/for_each_fn.cpp
+++ b/src/kernel/for_each_fn.cpp
@@ -4,6 +4,7 @@ Released under Apache 2.0 license as described in the file LICENSE.
 
 Author: Leonardo de Moura
 */
+#include <utility>
 #include "kernel/for_each_fn.h"
 
 namespace lean {
diff --git a/src/kernel/for_each_fn.h b/src/kernel/for_each_fn.h
index 67c774072..82103c50d 100644
--- a/src/kernel/for_each_fn.h
+++ b/src/kernel/for_each_fn.h
@@ -26,7 +26,7 @@ namespace lean {
 */
 class for_each_fn {
     std::unique_ptr<expr_cell_offset_set>       m_visited;
-    std::function<bool(expr const &, unsigned)> m_f;
+    std::function<bool(expr const &, unsigned)> m_f; // NOLINT
     void apply(expr const & e, unsigned offset);
 public:
     template<typename F> for_each_fn(F && f):m_f(f) {}