diff --git a/tests/expression/1.0/Android.bp b/tests/expression/1.0/Android.bp
index bb7aedd..1730aba 100644
--- a/tests/expression/1.0/Android.bp
+++ b/tests/expression/1.0/Android.bp
@@ -1,5 +1,13 @@
 // This file is autogenerated by hidl-gen. Do not edit manually.
 
+filegroup {
+    name: "android.hardware.tests.expression@1.0_hal",
+    srcs: [
+        "IExpression.hal",
+        "IExpressionExt.hal",
+    ],
+}
+
 genrule {
     name: "android.hardware.tests.expression@1.0_genc++",
     tools: ["hidl-gen"],