diff --git a/internal/backend-dev-plugin.mjs b/internal/backend-dev-plugin.mjs
index 20cd7eaf0..b1ad5554b 100644
--- a/internal/backend-dev-plugin.mjs
+++ b/internal/backend-dev-plugin.mjs
@@ -163,7 +163,7 @@ function start(root, b, logger, restarts = 0) {
   const sink = createWriteStream(resolve(logDir, `${b.name}.log`), { flags: 'a' })
   // The first-run "create your first superuser" link is forwarded too: it is a step a person must take,
   // and the HOWTO's admin screen at /api/pb/_/ is unusable on a fresh .pb without it.
-  const LOUD = /\b(error|fail(ed|ure)?|panic|fatal|warn(ing)?|refused|denied|in use|cannot|unable|superuser|pbinstal)\b/i
+  const LOUD = /\b(error|fail(ed|ure)?|panic|fatal|warn(ing)?|refused|denied|in use|cannot|unable|superuser|pbinstall?)\b/i
   const out = (d) => {
     sink.write(d)
     String(d).trim().split('\n').forEach((l) => l && LOUD.test(l) && entry.logger.info(`${tag} ${l}`))