diff --git a/src/rt/rustrt.def.in b/src/rt/rustrt.def.in
index e9f2890893f9..6a72726b0ae0 100644
--- a/src/rt/rustrt.def.in
+++ b/src/rt/rustrt.def.in
@@ -197,3 +197,4 @@ rust_call_tydesc_glue
 tdefl_compress_mem_to_heap
 tinfl_decompress_mem_to_heap
 rust_annihilate_box
+rust_gc_metadata