diff --git a/qtpylib/indicators.py b/qtpylib/indicators.py
index 32d6315..442b68d 100644
--- a/qtpylib/indicators.py
+++ b/qtpylib/indicators.py
@@ -288,9 +288,9 @@ def rolling_min(series, window=14, min_periods=None):
 def rolling_max(series, window=14, min_periods=None):
     min_periods = window if min_periods is None else min_periods
     try:
-        return series.rolling(window=window, min_periods=min_periods).min()
+        return series.rolling(window=window, min_periods=min_periods).max()
     except Exception as e:
-        return pd.Series(series).rolling(window=window, min_periods=min_periods).min()
+        return pd.Series(series).rolling(window=window, min_periods=min_periods).max()
 
 
 # ---------------------------------------------