diff --git a/dragonpilot/system/ui/lib/multilang.py b/dragonpilot/system/ui/lib/multilang.py
index 1f9c4c41..638ce09b 100644
--- a/dragonpilot/system/ui/lib/multilang.py
+++ b/dragonpilot/system/ui/lib/multilang.py
@@ -1,4 +1,6 @@
 import gettext
+import os
+import subprocess
 from openpilot.system.ui.lib.multilang import (
   multilang as base_multilang,
   TRANSLATIONS_DIR,
@@ -28,10 +30,35 @@ class DpMultilang:
     current_lang = base_multilang.language
     if current_lang != self._loaded_language:
       self._loaded_language = current_lang
+      mo_path = TRANSLATIONS_DIR.joinpath(f'dragonpilot_{current_lang}.mo')
+      po_path = TRANSLATIONS_DIR.joinpath(f'dragonpilot_{current_lang}.po')
       try:
-        with TRANSLATIONS_DIR.joinpath(f'dragonpilot_{current_lang}.mo').open('rb') as fh:
+        with mo_path.open('rb') as fh:
           self._dragon_translation = gettext.GNUTranslations(fh)
       except FileNotFoundError:
+        # Auto-compile .po to .mo if source exists
+        if po_path.exists():
+          try:
+            # Try msgfmt first (faster, available on device)
+            result = subprocess.run(['msgfmt', str(po_path), '-o', str(mo_path)], capture_output=True)
+            if result.returncode == 0 and mo_path.exists():
+              with mo_path.open('rb') as fh:
+                self._dragon_translation = gettext.GNUTranslations(fh)
+                return
+          except FileNotFoundError:
+            pass
+          # Fallback: try polib
+          try:
+            import polib
+            po = polib.pofile(str(po_path))
+            po.save_as_mofile(str(mo_path))
+            with mo_path.open('rb') as fh:
+              self._dragon_translation = gettext.GNUTranslations(fh)
+              return
+          except ImportError:
+            pass
+          except Exception:
+            pass
         self._dragon_translation = gettext.NullTranslations()
 
   def tr(self, text: str) -> str:
diff --git a/selfdrive/ui/translations/dragonpilot_zh-CHS.po b/selfdrive/ui/translations/dragonpilot_zh-CHS.po
index 1e65ba9f..e6c3ff1a 100644
--- a/selfdrive/ui/translations/dragonpilot_zh-CHS.po
+++ b/selfdrive/ui/translations/dragonpilot_zh-CHS.po
@@ -169,7 +169,7 @@ msgstr "道路边缘检测 (RED)"
 
 #: dragonpilot/settings/min-feat.lat.road-edge-detection.py
 msgid "Block lane change assist when the system detects the road edge.<br>NOTE: This will show 'Car Detected in Blindspot' warning."
-msgstr "当系统检测到道路边缘时阻止变道辅助。<br>注意：将显示"检测到盲区车辆"警告。"
+msgstr "当系统检测到道路边缘时阻止变道辅助。<br>注意：将显示\"检测到盲区车辆\"警告。"
 
 #: dragonpilot/settings/min-feat.lon.acm.py
 msgid "Enable Adaptive Coasting Mode (ACM)"
@@ -193,7 +193,7 @@ msgstr "自适应驾驶风格模式 (APM)"
 
 #: dragonpilot/settings/min-feat.lon.apm.py
 msgid "Automatically switches personality to \"Aggressive\" below 30 km/h and restores your selected personality above 40 km/h."
-msgstr "车速低于 30 km/h 时自动切换为"激进"风格，高于 40 km/h 时恢复你选择的风格。"
+msgstr "车速低于 30 km/h 时自动切换为\"激进\"风格，高于 40 km/h 时恢复你选择的风格。"
 
 #: dragonpilot/settings/min-feat.lon.ext-radar.py
 msgid "Use External Radar"