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-rw-r--r--lib/compiler/src/beam_dead.erl4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/compiler/src/beam_dead.erl b/lib/compiler/src/beam_dead.erl
index 9087586b58..d379fdc4eb 100644
--- a/lib/compiler/src/beam_dead.erl
+++ b/lib/compiler/src/beam_dead.erl
@@ -29,6 +29,10 @@
-import(lists, [mapfoldl/3,reverse/1]).
+
+-spec module(beam_utils:module_code(), [compile:option()]) ->
+ {'ok',beam_utils:module_code()}.
+
module({Mod,Exp,Attr,Fs0,_}, _Opts) ->
{Fs1,Lc1} = beam_clean:clean_labels(Fs0),
{Fs,Lc} = mapfoldl(fun function/2, Lc1, Fs1),