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-rw-r--r--src/ast_util.ml2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/ast_util.ml b/src/ast_util.ml
index 40cb7d98..f1df1ff5 100644
--- a/src/ast_util.ml
+++ b/src/ast_util.ml
@@ -1546,7 +1546,7 @@ let split_defs f defs =
| Some (pre_defs, def, post_defs) ->
Some (List.rev pre_defs, def, post_defs)
-let append_ast ast1 ast2 = { defs = ast1.defs @ ast2.defs }
+let append_ast ast1 ast2 = { defs = ast1.defs @ ast2.defs; comments = ast1.comments @ ast2.comments }
let append_ast_defs ast defs = { ast with defs = ast.defs @ defs }
let concat_ast asts = List.fold_right append_ast asts empty_ast