diff --git a/Assets/Cryville/Common/Unity/UrlOpener.cs b/Assets/Cryville/Common/Unity/UrlOpener.cs
index 3d0500e..42d4bad 100644
--- a/Assets/Cryville/Common/Unity/UrlOpener.cs
+++ b/Assets/Cryville/Common/Unity/UrlOpener.cs
@@ -4,7 +4,11 @@ namespace Cryville.Common.Unity {
 #if UNITY_STANDALONE_WIN || UNITY_EDITOR_WIN
 			System.Diagnostics.Process.Start(url);
 #elif UNITY_ANDROID
-			new UnityEngine.AndroidJavaClass("world.cryville.common.unity.UrlOpener").CallStatic("open", new object[] { url });
+			UnityEngine.AndroidJNI.AttachCurrentThread();
+			using (var clazz = new UnityEngine.AndroidJavaClass("world.cryville.common.unity.UrlOpener")) {
+				clazz.CallStatic("open", url);
+			}
+			UnityEngine.AndroidJNI.DetachCurrentThread();
 #else
 #error Unknown platform.
 #endif