diff --git a/services/audiopolicy/AudioPolicyInterface.h b/services/audiopolicy/AudioPolicyInterface.h
index 00f14e1..c5cdc25 100644
--- a/services/audiopolicy/AudioPolicyInterface.h
+++ b/services/audiopolicy/AudioPolicyInterface.h
@@ -403,6 +403,12 @@
                                                 std::vector<effect_descriptor_t> effects,
                                                 audio_patch_handle_t patchHandle,
                                                 audio_source_t source) = 0;
+
+    // Used to notify the sound trigger module that an audio capture is about to
+    // take place. This should typically result in any active recognition
+    // sessions to be preempted on modules that do not support sound trigger
+    // recognition concurrently with audio capture.
+    virtual void setSoundTriggerCaptureState(bool active) = 0;
 };
 
 extern "C" AudioPolicyInterface* createAudioPolicyManager(AudioPolicyClientInterface *clientInterface);