diff --git a/src/vim9instr.c b/src/vim9instr.c
index 72ecbaa..118e885 100644
--- a/src/vim9instr.c
+++ b/src/vim9instr.c
@@ -1619,7 +1619,8 @@
 
     // Drop the argument types and push the return type.
     stack->ga_len -= argcount;
-    type = internal_func_ret_type(func_idx, argcount, argtypes, &decl_type);
+    type = internal_func_ret_type(func_idx, argcount, argtypes, &decl_type,
+							  cctx->ctx_type_list);
     if (push_type_stack2(cctx, type, decl_type) == FAIL)
 	return FAIL;