diff --git a/src/runtime/c/gu/exn.c b/src/runtime/c/gu/exn.c
index 7bcfeb088..ec68ec039 100644
--- a/src/runtime/c/gu/exn.c
+++ b/src/runtime/c/gu/exn.c
@@ -68,5 +68,10 @@ gu_exn_raise_(GuExn* base, GuType* type)
 	return gu_exn_raise_debug_(base, type, NULL, NULL, -1);
 }
 
+GuType*
+gu_exn_caught(GuExn* err)
+{
+	return err->caught;
+}
 
 GU_DEFINE_TYPE(GuErrno, signed, _);