diff --git a/audio/2.0/default/service.cpp b/audio/2.0/default/service.cpp
index 4763c70..3cf7134 100644
--- a/audio/2.0/default/service.cpp
+++ b/audio/2.0/default/service.cpp
@@ -18,6 +18,7 @@
 
 #include <android/hardware/audio/2.0/IDevicesFactory.h>
 #include <android/hardware/audio/effect/2.0/IEffectsFactory.h>
+#include <android/hardware/soundtrigger/2.0/ISoundTriggerHw.h>
 #include <android/hardware/soundtrigger/2.1/ISoundTriggerHw.h>
 #include <hidl/HidlTransportSupport.h>
 #include <hidl/LegacySupport.h>
@@ -28,7 +29,8 @@
 
 using android::hardware::audio::effect::V2_0::IEffectsFactory;
 using android::hardware::audio::V2_0::IDevicesFactory;
-using android::hardware::soundtrigger::V2_1::ISoundTriggerHw;
+using V2_0_ISoundTriggerHw = android::hardware::soundtrigger::V2_0::ISoundTriggerHw;
+using V2_1_ISoundTriggerHw = android::hardware::soundtrigger::V2_1::ISoundTriggerHw;
 using android::hardware::registerPassthroughServiceImplementation;
 
 using android::OK;
@@ -41,8 +43,10 @@
     status = registerPassthroughServiceImplementation<IEffectsFactory>();
     LOG_ALWAYS_FATAL_IF(status != OK, "Error while registering audio effects service: %d", status);
     // Soundtrigger might be not present.
-    status = registerPassthroughServiceImplementation<ISoundTriggerHw>();
-    ALOGE_IF(status != OK, "Error while registering soundtrigger service: %d", status);
+    status = registerPassthroughServiceImplementation<V2_1_ISoundTriggerHw>();
+    ALOGW_IF(status != OK, "Registering soundtrigger V2.1 service was unsuccessful: %d", status);
+    status = registerPassthroughServiceImplementation<V2_0_ISoundTriggerHw>();
+    ALOGW_IF(status != OK, "Registering soundtrigger V2.0 service was unsuccessful: %d", status);
     joinRpcThreadpool();
     return status;
 }