diff --git a/src/elf/grafana_cli.py b/src/elf/grafana_cli.py
index 741762f..e5ff03a 100644
--- a/src/elf/grafana_cli.py
+++ b/src/elf/grafana_cli.py
@@ -37,11 +37,16 @@ async def mutate_chinese_titles(data: Dict[str, Any]) -> None:
     for key, value in data.items():
         if key in title_keys and isinstance(value, str) and contains_chinese(value):
             try:
+                chinese_value = value
+                if chinese_value.contains("--"):
+                    idx = value.index("--")
+                    chinese_value, _ = value[:idx]
+
                 # Translate Chinese text to English
-                translation = await translator.translate(value, dest='en')
-                data[key] = data[key] + "--" + translation.text
+                translation = await translator.translate(chinese_value, dest='en')
+                data[key] = chinese_value + "--" + translation.text
                 
-                console.print(f"[dim]Translated '{value}' → '{translation.text}'[/dim]")
+                console.print(f"[dim]Translated '{chinese_value}' → '{translation.text}'[/dim]")
             except Exception as e:
                 console.print(f"[yellow]Warning: Failed to translate '{value}': {e}[/yellow]")
         elif isinstance(value, dict):