diff --git a/TIASshot/Config.cs b/TIASshot/Config.cs
index 9431682..0ab0e24 100644
--- a/TIASshot/Config.cs
+++ b/TIASshot/Config.cs
@@ -46,14 +46,14 @@
         /// <param name="param"></param>
         /// <returns></returns>
         public static float GetFloat(string param) {
-            float value = 0.0f;
             XmlNode node = doc.SelectSingleNode($"//Config/{param}");
             if (node == null) throw new ArgumentException($"Parameter '{param}' not found in config file.");
 
-            if (node != null && float.TryParse(node.InnerText, out float result)) {
-                value = result;
+            if (!float.TryParse(node.InnerText, System.Globalization.NumberStyles.Float,
+                    System.Globalization.CultureInfo.InvariantCulture, out float result)) {
+                throw new ArgumentException($"Parameter '{param}' value '{node.InnerText}' is not a valid float.");
             }
-            return value;
+            return result;
         }
 
         /// <summary>
@@ -62,14 +62,14 @@
         /// <param name="param"></param>
         /// <returns></returns>
         public static int GetInt(string param) {
-            int value = 0;
             XmlNode node = doc.SelectSingleNode($"//Config/{param}");
             if (node == null) throw new ArgumentException($"Parameter '{param}' not found in config file.");
 
-            if (node != null && int.TryParse(node.InnerText, out int result)) {
-                value = result;
+            if (!int.TryParse(node.InnerText, System.Globalization.NumberStyles.Integer,
+                    System.Globalization.CultureInfo.InvariantCulture, out int result)) {
+                throw new ArgumentException($"Parameter '{param}' value '{node.InnerText}' is not a valid int.");
             }
-            return value;
+            return result;
         }
 
         /// <summary>