diff --git a/Unity/Assets/Scripts/UnityMobileInput/MobileInput.cs b/Unity/Assets/Scripts/UnityMobileInput/MobileInput.cs
index d7c28ed..f6e3ad7 100644
--- a/Unity/Assets/Scripts/UnityMobileInput/MobileInput.cs
+++ b/Unity/Assets/Scripts/UnityMobileInput/MobileInput.cs
@@ -113,11 +113,6 @@ public class MobileInput : MonoBehaviour, IPlugin {
         /// </summary>
         private JsonObject _error;
 
-        /// <summary>
-        /// Callback cache
-        /// </summary>
-        private Action _callback;
-
         /// <summary>
         /// MobileInput counter
         /// </summary>
@@ -322,4 +317,4 @@ void OnApplicationFocus (bool focusStatus) {
 
     }
 
-}
\ No newline at end of file
+}