diff --git a/docs/ERROR_HANDLING_ARCHITECTURE.md b/docs/ERROR_HANDLING_ARCHITECTURE.md
index da9cd6df..5f809728 100644
--- a/docs/ERROR_HANDLING_ARCHITECTURE.md
+++ b/docs/ERROR_HANDLING_ARCHITECTURE.md
@@ -42,7 +42,7 @@ graph TD
     end
     
     subgraph "3. UI Layer (The Messenger)"
-    C -- Calls --> H[translateErrorKey()]
+    C -- Calls --> H["translateErrorKey()"]
     H -- Returns --> I["Localized String (e.g. 'Sin conexión')"]
     end
 ```