diff --git a/Assets/Coffee/UIExtensions/UIParticle/Scripts/UIParticle.cs b/Assets/Coffee/UIExtensions/UIParticle/Scripts/UIParticle.cs
index 05bbc19..b808b27 100755
--- a/Assets/Coffee/UIExtensions/UIParticle/Scripts/UIParticle.cs
+++ b/Assets/Coffee/UIExtensions/UIParticle/Scripts/UIParticle.cs
@@ -54,9 +54,9 @@ public enum ShaderPropertyType
 			};
 
 			[SerializeField]
-			string m_Name;
+			string m_Name = "";
 			[SerializeField]
-			ShaderPropertyType m_Type;
+			ShaderPropertyType m_Type = ShaderPropertyType.Vector;
 			public int id { get; private set; }
 			public ShaderPropertyType type { get { return m_Type; } }
 
diff --git a/Assets/UIParticle_Demo/UIParticle_Demo.cs b/Assets/UIParticle_Demo/UIParticle_Demo.cs
index e5e614a..36d69bf 100644
--- a/Assets/UIParticle_Demo/UIParticle_Demo.cs
+++ b/Assets/UIParticle_Demo/UIParticle_Demo.cs
@@ -7,9 +7,9 @@ namespace Coffee.UIExtensions.Demo
 {
 	public class UIParticle_Demo : MonoBehaviour
 	{
-		[SerializeField] ParticleSystem [] m_ParticleSystems;
-		[SerializeField] List<Transform> m_ScalingByTransforms;
-		[SerializeField] List<UIParticle> m_ScalingByUIParticles;
+		[SerializeField] ParticleSystem [] m_ParticleSystems = new ParticleSystem [0];
+		[SerializeField] List<Transform> m_ScalingByTransforms = new List<Transform> ();
+		[SerializeField] List<UIParticle> m_ScalingByUIParticles = new List<UIParticle> ();
 
 		public void SetTimeScale (float scale)
 		{