diff --git a/src/Bundle/ChillBudgetBundle/Calculator/CalculatorResult.php b/src/Bundle/ChillBudgetBundle/Calculator/CalculatorResult.php
index 380e641a6..2a67486f0 100644
--- a/src/Bundle/ChillBudgetBundle/Calculator/CalculatorResult.php
+++ b/src/Bundle/ChillBudgetBundle/Calculator/CalculatorResult.php
@@ -21,7 +21,7 @@ class CalculatorResult
 
     public $label;
 
-    public $result;
+    public float $result;
 
     public $type;
 }