diff --git a/apex/Android.bp b/apex/Android.bp
index 50c17f6..fa3806f 100644
--- a/apex/Android.bp
+++ b/apex/Android.bp
@@ -17,17 +17,20 @@
     arch: {
         arm64: {
             binaries: [
+                "authfs", // TODO(victorhsieh): move to microdroid once we can run the test in VM.
                 "crosvm",
             ],
         },
         x86_64: {
             binaries: [
+                "authfs", // TODO(victorhsieh): move to microdroid once we can run the test in VM.
                 "crosvm",
             ],
         },
     },
     binaries: [
         "assemble_cvd",
+        "fd_server",
         "virtmanager",
         "vm",
     ],
diff --git a/authfs/Android.bp b/authfs/Android.bp
index 9f7be93..4a20a0c 100644
--- a/authfs/Android.bp
+++ b/authfs/Android.bp
@@ -39,11 +39,13 @@
     ],
     bindgen_flags: ["--size_t-is-usize"],
     cflags: ["-D BORINGSSL_NO_CXX"],
+    apex_available: ["com.android.virt"],
 }
 
 rust_binary {
     name: "authfs",
     defaults: ["authfs_defaults"],
+    apex_available: ["com.android.virt"],
 }
 
 rust_test {
diff --git a/authfs/aidl/Android.bp b/authfs/aidl/Android.bp
index 7f3c968..35a3c4a 100644
--- a/authfs/aidl/Android.bp
+++ b/authfs/aidl/Android.bp
@@ -9,6 +9,7 @@
     backend: {
         rust: {
             enabled: true,
+            apex_available: ["com.android.virt"],
         },
     },
 }
diff --git a/authfs/fd_server/Android.bp b/authfs/fd_server/Android.bp
index f12f01f..6f010ce 100644
--- a/authfs/fd_server/Android.bp
+++ b/authfs/fd_server/Android.bp
@@ -13,4 +13,5 @@
         "liblibc",
         "liblog_rust",
     ],
+    apex_available: ["com.android.virt"],
 }