diff --git a/strategies/tps.py b/strategies/tps.py
index 2435647..036a206 100644
--- a/strategies/tps.py
+++ b/strategies/tps.py
@@ -6,7 +6,8 @@ from indicators import rsi, sma
 def tps(data: DataFrame) -> Series:
     """
     Calculate signals based on the Time, Price, Scale-in (TPS) strategy.
-    Returns a Series with 'Long' for signals and 'None' otherwise, without modifying the original DataFrame.
+
+    Returns a Series with 'L' for long signals and 'N' otherwise.
     """
     ma_200 = sma(data, period = 200)
     rsi_2 = rsi(data, period = 2)