fix for bhuga#4

brundage · Jun 4, 2012 · abd81fd · abd81fd
1 parent 8875dbe
commit abd81fd
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/quantity/unit.rb b/lib/quantity/unit.rb
@@ -294,7 +294,7 @@ def calculate_value
       @dimension.numerators.each do | component |
         component.power.times do 
           # we might have a unit for a compound dimension, such as liters for length^3.
-          value *= @units[Quantity::Dimension.for(component.dimension)].value
+          value *= @units[Quantity::Dimension.for(component.dimension)].value if @units[Quantity::Dimension.for(component.dimension)]
         end
       end
       @dimension.denominators.each do | component |