diff --git a/scripts/backtest_sites.py b/scripts/backtest_sites.py
index 239f97b1..6ebb7b30 100644
--- a/scripts/backtest_sites.py
+++ b/scripts/backtest_sites.py
@@ -94,7 +94,7 @@
 
 # Add all pv site ids here that you wish to produce forecasts for
 ALL_SITE_IDS = []
-# Need to be in ascending order 
+# Need to be in ascending order
 ALL_SITE_IDS.sort()
 
 # ------------------------------------------------------------------