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-rw-r--r--library/std/src/net/parser.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/library/std/src/net/parser.rs b/library/std/src/net/parser.rs
index e233d605ce5..4e16a55edec 100644
--- a/library/std/src/net/parser.rs
+++ b/library/std/src/net/parser.rs
@@ -148,7 +148,7 @@ impl<'a> Parser<'a> {
                 *slot = p.read_separator('.', i, |p| {
                     // Disallow octal number in IP string.
                     // https://tools.ietf.org/html/rfc6943#section-3.1.1
-                    p.read_number(10, None, false)
+                    p.read_number(10, Some(3), false)
                 })?;
             }