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-rw-r--r--src/cow_http_hd.erl2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/cow_http_hd.erl b/src/cow_http_hd.erl
index f6e26f5..162e6ad 100644
--- a/src/cow_http_hd.erl
+++ b/src/cow_http_hd.erl
@@ -1256,7 +1256,7 @@ parse_last_modified_test_() ->
%% @doc Parse the Max-Forwards header.
--spec parse_max_forwards(binary()) -> integer().
+-spec parse_max_forwards(binary()) -> non_neg_integer().
parse_max_forwards(<< $0, R/bits >>) -> number(R, 0);
parse_max_forwards(<< $1, R/bits >>) -> number(R, 1);
parse_max_forwards(<< $2, R/bits >>) -> number(R, 2);