diff --git a/lib/fbe/award.rb b/lib/fbe/award.rb
index e8136218..7fd651b1 100644
--- a/lib/fbe/award.rb
+++ b/lib/fbe/award.rb
@@ -378,7 +378,7 @@ def line(value, text)
     #   bill.line(42.5, "for answer")
     #   bill.points #=> 43
     def points
-      @lines.sum { |l| whole(l[:v]) }
+      whole(@lines.sum { |l| l[:v] })
     end
 
     # Generates a human-readable summary of the bill.
diff --git a/test/fbe/test_award.rb b/test/fbe/test_award.rb
index a6174ad0..10f78c49 100644
--- a/test/fbe/test_award.rb
+++ b/test/fbe/test_award.rb
@@ -140,6 +140,13 @@ def test_lines_add_up_to_the_total
     assert_equal("You've earned +20 points for this: +12 as a basis; +8 for comments. ", g)
   end
 
+  def test_rounds_the_sum_once
+    bill = Fbe::Award::Bill.new
+    bill.line(0.5, 'first')
+    bill.line(0.5, 'second')
+    assert_equal(1, bill.points)
+  end
+
   def test_shorten_when_one_number
     g = Fbe::Award.new('(award (give 23 "for love"))').bill.greeting
     assert_equal('You\'ve earned +23 points. ', g, g)