diff --git a/recommendations/HotwaterRecommendations.py b/recommendations/HotwaterRecommendations.py
index aed1a5e5..b86329e4 100644
--- a/recommendations/HotwaterRecommendations.py
+++ b/recommendations/HotwaterRecommendations.py
@@ -66,7 +66,7 @@ class HotwaterRecommendations:
             (self.property.hotwater["heater_type"] in ["electric immersion"]) &
             (self.property.data["hot-water-energy-eff"] == "Very Poor") &
             (self.property.hotwater["no_system_present"] is None) &
-            len(has_tank_recommendation) == 0
+            (len(has_tank_recommendation) == 0)
         ):
             self.recommend_tank_insulation(phase=phase)
             return