diff --git a/jerry-core/api/jerryscript.c b/jerry-core/api/jerryscript.c
index d8174b92c..36dc05913 100644
--- a/jerry-core/api/jerryscript.c
+++ b/jerry-core/api/jerryscript.c
@@ -2247,7 +2247,7 @@ jerry_value_as_integer (const jerry_value_t value) /**< input value */
     return 0;
   }
 
-  double number = ecma_get_number_from_value (value);
+  ecma_number_t number = ecma_get_number_from_value (value);
 
   if (ecma_number_is_nan (number))
   {