diff --git a/CHANGELOG.md b/CHANGELOG.md
index bf60743..07c48ca 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+# [3.0.0-preview.12](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v3.0.0-preview.11...v3.0.0-preview.12) (2020-08-11)
+
+
+### Bug Fixes
+
+* Profiler.BeginSample -> Profiler.EndSample if a canvas is disabled or a camera doesn't found ([4a0a5d1](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/4a0a5d13be68e38d5b2e225156740aed27c52d12))
+
 # [3.0.0-preview.11](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v3.0.0-preview.10...v3.0.0-preview.11) (2020-05-07)
 
 
diff --git a/Scripts/UIParticle.cs b/Scripts/UIParticle.cs
index b45235d..248f435 100755
--- a/Scripts/UIParticle.cs
+++ b/Scripts/UIParticle.cs
@@ -461,6 +461,7 @@ namespace Coffee.UIExtensions
 
                         if (!cam)
                         {
+                            Profiler.EndSample();
                             return;
                         }
                         if (m_IsTrail)
diff --git a/package.json b/package.json
index b31359b..f6b331a 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "com.coffee.ui-particle",
   "displayName": "UI Particle",
   "description": "This plugin provide a component to render particle effect for uGUI.\nThe particle rendering is maskable and sortable, without Camera, RenderTexture or Canvas.",
-  "version": "3.0.0-preview.11",
+  "version": "3.0.0-preview.12",
   "unity": "2018.2",
   "license": "MIT",
   "repository": {