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-rw-r--r--lib/dialyzer/test/small_SUITE_data/src/maps_redef.erl12
1 files changed, 12 insertions, 0 deletions
diff --git a/lib/dialyzer/test/small_SUITE_data/src/maps_redef.erl b/lib/dialyzer/test/small_SUITE_data/src/maps_redef.erl
new file mode 100644
index 0000000000..70059f73b6
--- /dev/null
+++ b/lib/dialyzer/test/small_SUITE_data/src/maps_redef.erl
@@ -0,0 +1,12 @@
+-module(maps_redef).
+
+-export([t/0]).
+
+%% OK in Erlang/OTP 17, at least.
+
+-type map() :: atom(). % redefine built-in type
+
+-spec t() -> map().
+
+t() ->
+ a. % OK