lib/measured/unit.rb in measured-2.3.0 vs lib/measured/unit.rb in measured-2.4.0

@@ -52,10 +52,10 @@
       name <=> other
     end
   end
 
   def inverse_conversion_amount
-    @inverse_conversion_amount ||= 1 / conversion_amount
+    @inverse_conversion_amount ||= 1 / conversion_amount if conversion_amount
   end
 
   private
 
   def conversion_string