diff --git a/radio/1.5/.hidl_for_system_ext b/radio/1.5/.hidl_for_system_ext
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/radio/1.5/Android.bp b/radio/1.5/Android.bp
index 0542924e2d..74de0fddd2 100644
--- a/radio/1.5/Android.bp
+++ b/radio/1.5/Android.bp
@@ -19,4 +19,5 @@ hidl_interface {
         "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 0000000000..e69de29bb2
diff --git a/radio/config/1.1/Android.bp b/radio/config/1.1/Android.bp
index a5c3114728..69d9a836fc 100644
--- a/radio/config/1.1/Android.bp
+++ b/radio/config/1.1/Android.bp
@@ -15,4 +15,5 @@ hidl_interface {
         "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 0000000000..e69de29bb2
diff --git a/radio/config/1.2/Android.bp b/radio/config/1.2/Android.bp
index 39d55ffa7a..f751868af3 100644
--- a/radio/config/1.2/Android.bp
+++ b/radio/config/1.2/Android.bp
@@ -15,4 +15,5 @@ hidl_interface {
         "android.hidl.base@1.0",
     ],
     gen_java: true,
+    system_ext_specific: true,
 }