diff --git a/src/build-logs.ts b/src/build-logs.ts
index 58c5227..bfbed6a 100644
--- a/src/build-logs.ts
+++ b/src/build-logs.ts
@@ -100,7 +100,7 @@ export async function readBuildLogs(api: Api, projectId: string, source: BuildSo
   return { ...first, nextCursor: undefined, state: pending ? 'pending' : first.state, steps, output }
 }
 
-const safeText = (text: string) => stripVTControlCharacters(text).replace(/[\x00-\x08\x0b-\x1f\x7f]/g, '')
+const safeText = (text: string) => stripVTControlCharacters(text).replace(/[\x00-\x08\x0b-\x1f\x7f-\x9f\u200e\u200f\u202a-\u202e\u2066-\u2069]/g, '')
 
 export class BuildLogPrinter {
   private seen = new Map<string, number>()
diff --git a/test/build-logs.test.ts b/test/build-logs.test.ts
index 8cd15d7..008924c 100644
--- a/test/build-logs.test.ts
+++ b/test/build-logs.test.ts
@@ -47,6 +47,13 @@ describe('build logs', () => {
     expect(write.mock.calls.map(([text]) => text)).toEqual(['RUN test\n', 'same\n', 'same\n', 'late\n', 'same\n'])
   })
 
+  it('strips bidi overrides, invisible marks and C1 controls while keeping tabs and newlines', () => {
+    const printer = new BuildLogPrinter()
+    const write = vi.fn()
+    printer.print({ ...base, state: 'ready', output: [{ step: 'step1', name: 'RUN test', entries: [entry('a\u202eb\u0080\u0085c\u2066d\u2069e\u200ef\u200fg\u202ah\u009fi\n'), entry('col1\tcol2\n'), entry('plain text ok\n')] }] }, write)
+    expect(write.mock.calls.map(([text]) => text)).toEqual(['RUN test\n', 'abcdefghi\n', 'col1\tcol2\n', 'plain text ok\n'])
+  })
+
   it('resumes after transient errors and reads delayed terminal output', async () => {
     let reads = 0
     const api = apiWith((path) => {