diff --git a/src/utils/repo-path.ts b/src/utils/repo-path.ts
index 22330d275..f7b790c6c 100644
--- a/src/utils/repo-path.ts
+++ b/src/utils/repo-path.ts
@@ -1,6 +1,6 @@
 export const MAX_REPO_PATH_LENGTH = 512
 
-const REPO_PATH_SEGMENT_PATTERN = /^[a-zA-Z0-9._$+-]+$/
+const REPO_PATH_SEGMENT_PATTERN = /^[a-zA-Z0-9._$+\[\]-]+$/
 
 export function isValidRepoPath(path: string) {
   if (path === '') {
diff --git a/tests/repo-path.test.ts b/tests/repo-path.test.ts
index 7c2a78c65..9c616368f 100644
--- a/tests/repo-path.test.ts
+++ b/tests/repo-path.test.ts
@@ -16,6 +16,12 @@ assert.equal(
   'underscores remain valid repo path segments',
 )
 
+assert.equal(
+  isValidRepoPath('examples/svelte/ssr/src/routes/[postId]/+page.ts'),
+  true,
+  'Svelte bracket-notation route params are valid repo path segments',
+)
+
 assert.equal(
   isValidRepoPath('../src/routes/__root.tsx'),
   false,