diff --git a/audio/2.0/default/StreamIn.cpp b/audio/2.0/default/StreamIn.cpp
index 51c2cc72c0..edc8f128f4 100644
--- a/audio/2.0/default/StreamIn.cpp
+++ b/audio/2.0/default/StreamIn.cpp
@@ -275,7 +275,7 @@ Return<void> StreamIn::prepareForReading(
     if (mDataMQ) {
         ALOGE("the client attempts to call prepareForReading twice");
         _hidl_cb(Result::INVALID_STATE,
-                MQDescriptorSync<uint8_t>(), MQDescriptorSync<ReadStatus>());
+                DataMQ::Descriptor(), StatusMQ::Descriptor());
         return Void();
     }
     std::unique_ptr<DataMQ> tempDataMQ(
@@ -285,7 +285,7 @@ Return<void> StreamIn::prepareForReading(
         ALOGE_IF(!tempDataMQ->isValid(), "data MQ is invalid");
         ALOGE_IF(!tempStatusMQ->isValid(), "status MQ is invalid");
         _hidl_cb(Result::INVALID_ARGUMENTS,
-                MQDescriptorSync<uint8_t>(), MQDescriptorSync<ReadStatus>());
+                DataMQ::Descriptor(), StatusMQ::Descriptor());
         return Void();
     }
     // TODO: Remove event flag management once blocking MQ is implemented. b/33815422
@@ -293,7 +293,7 @@ Return<void> StreamIn::prepareForReading(
     if (status != OK || !mEfGroup) {
         ALOGE("failed creating event flag for data MQ: %s", strerror(-status));
         _hidl_cb(Result::INVALID_ARGUMENTS,
-                MQDescriptorSync<uint8_t>(), MQDescriptorSync<ReadStatus>());
+                DataMQ::Descriptor(), StatusMQ::Descriptor());
         return Void();
     }
 
@@ -309,7 +309,7 @@ Return<void> StreamIn::prepareForReading(
     if (status != OK) {
         ALOGW("failed to start reader thread: %s", strerror(-status));
         _hidl_cb(Result::INVALID_ARGUMENTS,
-                MQDescriptorSync<uint8_t>(), MQDescriptorSync<ReadStatus>());
+                DataMQ::Descriptor(), StatusMQ::Descriptor());
         return Void();
     }
 
diff --git a/audio/2.0/default/StreamOut.cpp b/audio/2.0/default/StreamOut.cpp
index 4bb22742db..69da59ea48 100644
--- a/audio/2.0/default/StreamOut.cpp
+++ b/audio/2.0/default/StreamOut.cpp
@@ -263,7 +263,7 @@ Return<void> StreamOut::prepareForWriting(
     if (mDataMQ) {
         ALOGE("the client attempts to call prepareForWriting twice");
         _hidl_cb(Result::INVALID_STATE,
-                MQDescriptorSync<uint8_t>(), MQDescriptorSync<WriteStatus>());
+                DataMQ::Descriptor(), StatusMQ::Descriptor());
         return Void();
     }
     std::unique_ptr<DataMQ> tempDataMQ(
@@ -273,7 +273,7 @@ Return<void> StreamOut::prepareForWriting(
         ALOGE_IF(!tempDataMQ->isValid(), "data MQ is invalid");
         ALOGE_IF(!tempStatusMQ->isValid(), "status MQ is invalid");
         _hidl_cb(Result::INVALID_ARGUMENTS,
-                MQDescriptorSync<uint8_t>(), MQDescriptorSync<WriteStatus>());
+                DataMQ::Descriptor(), StatusMQ::Descriptor());
         return Void();
     }
     // TODO: Remove event flag management once blocking MQ is implemented. b/33815422
@@ -281,7 +281,7 @@ Return<void> StreamOut::prepareForWriting(
     if (status != OK || !mEfGroup) {
         ALOGE("failed creating event flag for data MQ: %s", strerror(-status));
         _hidl_cb(Result::INVALID_ARGUMENTS,
-                MQDescriptorSync<uint8_t>(), MQDescriptorSync<WriteStatus>());
+                DataMQ::Descriptor(), StatusMQ::Descriptor());
         return Void();
     }
 
@@ -297,7 +297,7 @@ Return<void> StreamOut::prepareForWriting(
     if (status != OK) {
         ALOGW("failed to start writer thread: %s", strerror(-status));
         _hidl_cb(Result::INVALID_ARGUMENTS,
-                MQDescriptorSync<uint8_t>(), MQDescriptorSync<WriteStatus>());
+                DataMQ::Descriptor(), StatusMQ::Descriptor());
         return Void();
     }
 
diff --git a/graphics/composer/2.1/default/HwcClient.cpp b/graphics/composer/2.1/default/HwcClient.cpp
index 54dfd89228..621cb14a33 100644
--- a/graphics/composer/2.1/default/HwcClient.cpp
+++ b/graphics/composer/2.1/default/HwcClient.cpp
@@ -514,7 +514,7 @@ Return<void> HwcClient::getOutputCommandQueue(
     if (outDescriptor) {
         hidl_cb(Error::NONE, *outDescriptor);
     } else {
-        hidl_cb(Error::NO_RESOURCES, MQDescriptorSync<uint32_t>());
+        hidl_cb(Error::NO_RESOURCES, CommandQueueType::Descriptor());
     }
 
     return Void();