diff --git a/src/rt/rust_box.h b/src/rt/rust_box.h
deleted file mode 100644
index 52d1046895cf..000000000000
--- a/src/rt/rust_box.h
+++ /dev/null
@@ -1,18 +0,0 @@
-/* Rust box representation. */
-
-#ifndef RUST_BOX_H
-#define RUST_BOX_H
-
-#include "rust_internal.h"
-#include <stdint.h>
-
-struct rust_box {
-    RUST_REFCOUNTED(rust_box)
-    type_desc *tydesc;
-    rust_box *gc_next;
-    rust_box *gc_prev;
-    uint8_t data[0];
-};
-
-#endif
-