diff --git a/src/frontend/ir/location_descriptor.h b/src/frontend/ir/location_descriptor.h
index edc0318d..2ec601f2 100644
--- a/src/frontend/ir/location_descriptor.h
+++ b/src/frontend/ir/location_descriptor.h
@@ -6,6 +6,7 @@
 
 #pragma once
 
+#include <functional>
 #include <iosfwd>
 
 #include "common/common_types.h"