diff --git a/backtrader/indicators/deviation.py b/backtrader/indicators/deviation.py
index <HASH>..<HASH> 100644
--- a/backtrader/indicators/deviation.py
+++ b/backtrader/indicators/deviation.py
@@ -31,9 +31,11 @@ class StandardDeviation(Indicator):
     Note:
       - If 2 datas are provided as parameters, the 2nd is considered to be the
         mean of the first
-      - ``safepow´´ (default: False) If this parameter is True, the standard deviation
-        will be calculated as pow(abs(meansq - sqmean), 0.5) to safe guard for possible
-        negative results of ``meansq - sqmean´´ caused by the floating point representation.
+
+      - ``safepow´´ (default: False) If this parameter is True, the standard
+        deviation will be calculated as pow(abs(meansq - sqmean), 0.5) to safe
+        guard for possible negative results of ``meansq - sqmean´´ caused by
+        the floating point representation.
 
     Formula:
       - meansquared = SimpleMovingAverage(pow(data, 2), period)
PEP-8 compliance in docstring