diff --git a/lib/score_calculator.rb b/lib/score_calculator.rb
index 5e606f5ae..70d3835ec 100644
--- a/lib/score_calculator.rb
+++ b/lib/score_calculator.rb
@@ -17,7 +17,7 @@ module ScoreCalculator
   end
 
   def self.confidence_score(votes_total, votes_up)
-    return 0 unless votes_total > 0
+    return 1 unless votes_total > 0
 
     votes_total = votes_total.to_f
     votes_up    = votes_up.to_f
diff --git a/spec/models/comment_spec.rb b/spec/models/comment_spec.rb
index 11a02400a..b2696381e 100644
--- a/spec/models/comment_spec.rb
+++ b/spec/models/comment_spec.rb
@@ -56,6 +56,9 @@ describe Comment do
 
       comment = create(:comment, :with_confidence_score, cached_votes_up: 10, cached_votes_total: 100)
       expect(comment.confidence_score).to eq(-800)
+
+      comment = create(:comment, :with_confidence_score, cached_votes_up: 0, cached_votes_total: 0)
+      expect(comment.confidence_score).to eq(1)
     end
 
     describe 'actions which affect it' do