diff --git a/app/Library/FinanceHelper.php b/app/Library/FinanceHelper.php
index 2ce866f0f..ed503eed5 100644
--- a/app/Library/FinanceHelper.php
+++ b/app/Library/FinanceHelper.php
@@ -40,7 +40,7 @@ class FinanceHelper {
         }
 
         //Multiply the amount of fuel blocks used by the structure by 20,000.
-        $cost = $fuelBlocks * 20000;
+        $cost = $fuelBlocks * 20000.00;
         //Return to the calling function
         return $cost;
     }