diff --git a/virtualizationmanager/src/aidl.rs b/virtualizationmanager/src/aidl.rs
index d173b34..dd17b46 100644
--- a/virtualizationmanager/src/aidl.rs
+++ b/virtualizationmanager/src/aidl.rs
@@ -624,6 +624,8 @@
         } else {
             None
         };
+        let virtio_snd_backend =
+            if cfg!(paravirtualized_devices) { Some(String::from("aaudio")) } else { None };
 
         // Actually start the VM.
         let crosvm_config = CrosvmConfig {
@@ -654,6 +656,7 @@
             input_device_options,
             hugepages: config.hugePages,
             tap,
+            virtio_snd_backend,
         };
         let instance = Arc::new(
             VmInstance::new(