diff --git a/services/soundtrigger/SoundTriggerHalInterface.h b/services/soundtrigger/SoundTriggerHalInterface.h
index 076ca23..0183ece 100644
--- a/services/soundtrigger/SoundTriggerHalInterface.h
+++ b/services/soundtrigger/SoundTriggerHalInterface.h
@@ -72,12 +72,12 @@
         virtual int stopAllRecognitions() = 0;
 
         /* Get the current state of a given model.
-         * Returns 0 or an error code. If successful it also sets indicated the event pointer
-         * and expectes that the caller will free the memory.
+         * Returns 0 or an error code. If successful the state will be returned asynchronously
+         * via a recognition event in the callback method that was registered in the
+         * startRecognition() method.
          * Only supported for device api versions SOUND_TRIGGER_DEVICE_API_VERSION_1_2 or above.
          */
-        virtual int getModelState(sound_model_handle_t handle,
-                                  struct sound_trigger_recognition_event** event) = 0;
+        virtual int getModelState(sound_model_handle_t handle) = 0;
 
 protected:
         SoundTriggerHalInterface() {}