diff --git a/radio/1.5/.hidl_for_system_ext b/radio/1.5/.hidl_for_system_ext
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/radio/1.5/.hidl_for_system_ext
diff --git a/radio/1.5/Android.bp b/radio/1.5/Android.bp
index 0542924..74de0fd 100644
--- a/radio/1.5/Android.bp
+++ b/radio/1.5/Android.bp
@@ -19,4 +19,5 @@
         "android.hidl.safe_union@1.0",
     ],
     gen_java: true,
+    system_ext_specific: true,
 }
diff --git a/radio/config/1.1/.hidl_for_system_ext b/radio/config/1.1/.hidl_for_system_ext
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/radio/config/1.1/.hidl_for_system_ext
diff --git a/radio/config/1.1/Android.bp b/radio/config/1.1/Android.bp
index a5c3114..69d9a83 100644
--- a/radio/config/1.1/Android.bp
+++ b/radio/config/1.1/Android.bp
@@ -15,4 +15,5 @@
         "android.hidl.base@1.0",
     ],
     gen_java: true,
+    system_ext_specific: true,
 }
diff --git a/radio/config/1.2/.hidl_for_system_ext b/radio/config/1.2/.hidl_for_system_ext
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/radio/config/1.2/.hidl_for_system_ext
diff --git a/radio/config/1.2/Android.bp b/radio/config/1.2/Android.bp
index 39d55ff..f751868 100644
--- a/radio/config/1.2/Android.bp
+++ b/radio/config/1.2/Android.bp
@@ -15,4 +15,5 @@
         "android.hidl.base@1.0",
     ],
     gen_java: true,
+    system_ext_specific: true,
 }