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-rw-r--r--stdlib/format.ml2
1 files changed, 1 insertions, 1 deletions
diff --git a/stdlib/format.ml b/stdlib/format.ml
index 9cb9a1afd3..28bb5f1c59 100644
--- a/stdlib/format.ml
+++ b/stdlib/format.ml
@@ -1148,7 +1148,7 @@ let mkprintf to_s get_out =
print_as := Some size;
doprn n (skip_gt i) in
get_int n (succ i) got_size
- | '@' as c ->
+ | '@' | '%' as c ->
pp_print_as_char c;
doprn n (succ i)
| _ -> invalid_format fmt i