diff --git a/Config/MovementDefinitionFactory.cs b/Config/MovementDefinitionFactory.cs
index fc28f52..d045c10 100644
--- a/Config/MovementDefinitionFactory.cs
+++ b/Config/MovementDefinitionFactory.cs
@@ -67,7 +67,7 @@ namespace Syntriax.Modules.Movement.Config
         public void AddDefinitionToFactory(MovementDefinition movementDefinition)
         {
             if (Definitions.ContainsKey(movementDefinition.Name))
-                throw new System.ArgumentException($"{ movementDefinition.Name } is already in the Movement Definition Factory");
+                throw new System.ArgumentException($"{movementDefinition.Name} is already in the Movement Definition Factory");
 
             Definitions.Add(movementDefinition.Name, movementDefinition);
         }
@@ -75,7 +75,7 @@ namespace Syntriax.Modules.Movement.Config
         public void ApplyDefinitionToGameObject(GameObject gameObject, string definitionName)
         {
             if (!Definitions.ContainsKey(definitionName))
-                throw new System.ArgumentException($"The definition with name \"{ definitionName }\" does not exists in the current { Name }");
+                throw new System.ArgumentException($"The definition with name \"{definitionName}\" does not exists in the current {Name}");
 
             ApplyDefinitionToGameObject(gameObject, Definitions[definitionName]);
         }
@@ -92,6 +92,9 @@ namespace Syntriax.Modules.Movement.Config
                 foreach (string monoBehaviours in definition.MonoBehaviours)
                     MovementFactory.Instance.AddToGameObject(gameObject, monoBehaviours);
 
+            if (string.IsNullOrEmpty(definition.DefaultVariableMovement))
+                return;
+
             IVariableMovementController variableMovementController = gameObject.GetComponent<IVariableMovementController>();
             VMCollection collection = VariableMovementFactory.Instance.Collections[definition.DefaultVariableMovement];
             variableMovementController?.LoadVariableMovementCollection(collection);
@@ -101,7 +104,7 @@ namespace Syntriax.Modules.Movement.Config
         public void SaveMovementDefinition(MovementDefinition definition)
         {
             string jsonText = JsonUtility.ToJson(definition, true);
-            string path = $"Assets/Resources/{ ResourceDirectoryToDefinitions }{ definition.Name }.json";
+            string path = $"Assets/Resources/{ResourceDirectoryToDefinitions}{definition.Name}.json";
             System.IO.File.WriteAllText(path, jsonText);
         }
 #endif