diff --git a/src/arc/context.cpp b/src/arc/context.cpp
index 88a1787b..c2356853 100644
--- a/src/arc/context.cpp
+++ b/src/arc/context.cpp
@@ -33,6 +33,7 @@ auto context::init(arc::build build, fs_callback callback) -> void
 
 auto context::cleanup() -> void
 {
+    header_files_.clear();
 }
 
 auto context::engine_name() const -> std::string_view