diff --git a/untitled:plan-forexCustomization.prompt.md b/untitled:plan-forexCustomization.prompt.md
index 26c35e3c..356cf653 100644
--- a/untitled:plan-forexCustomization.prompt.md
+++ b/untitled:plan-forexCustomization.prompt.md
@@ -42,7 +42,7 @@ Transform the equity-focused trading agents architecture into a multi-asset syst
 class Instrument(ABC):
     symbol: str
     name: str
-    instrument_type: str  # "EQUITY" | "FOREX"
+    instrument_type: InstrumentType  # Enum: EQUITY, FOREX
     
 class CurrencyPair(Instrument):
     base_currency: str  # "EUR"