diff --git a/CHANGELOG.md b/CHANGELOG.md
index 08bd7bd22..76a310248 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2045,7 +2045,7 @@ release 0.1.0 (scheduled March 2022).
- We store fewer needless fields from Tor directory documents. ([!151],
[!165])
-- We've gone through and converted _every_ `XXXX` comment in our code (which
+- We've gone through and converted _every_ XXXX
comment in our code (which
indicated a must-fix issue) into a ticket, or a `TODO`. ([#231])
- Our SOCKS code is much more careful about sending error messages if
an error occurs before the SOCKS connection succeeds. ([!189])
diff --git a/maint/binary_size b/maint/binary_size
index 85ec23b2c..8fa16ac0b 100755
--- a/maint/binary_size
+++ b/maint/binary_size
@@ -6,7 +6,7 @@
set -euo pipefail
ORIGDIR=$(pwd)
-TMPDIR=$(mktemp -d -t arti_binsize.XXXXXX)
+TMPDIR=$(mktemp -d -t arti_binsize."XX""XX""XX")
trap 'cd "$ORIGDIR" && rm -rf "$TMPDIR"' 0
RUST_TARGET=$(rustc -vV | sed -n 's|host: ||p')
diff --git a/maint/fixup-features/src/main.rs b/maint/fixup-features/src/main.rs
index 127ab4aeb..f7ce92322 100644
--- a/maint/fixup-features/src/main.rs
+++ b/maint/fixup-features/src/main.rs
@@ -120,7 +120,7 @@ fn arti_dependencies(dependencies: &Table) -> Vec {
/// A complaint that we add to features which are not reachable according to
/// rule 3.
-const COMPLAINT: &str = "# XXXX Add this to a top-level feature!\n";
+const COMPLAINT: &str = "# XX\x58X Add this to a top-level feature!\n";
impl Crate {
/// Try to read a crate's Cargo.toml from a given filename.