diff --git a/tests/bar/1.0/default/Android.bp b/tests/bar/1.0/default/Android.bp
index 7e349c2..2c79357 100644
--- a/tests/bar/1.0/default/Android.bp
+++ b/tests/bar/1.0/default/Android.bp
@@ -3,6 +3,7 @@
 cc_library_shared {
     name: "android.hardware.tests.bar@1.0-impl",
     relative_install_path: "hw",
+    proprietary: true,
     srcs: [
         "Bar.cpp",
         "ImportTypes.cpp",
diff --git a/tests/foo/1.0/default/Android.bp b/tests/foo/1.0/default/Android.bp
index 952f25d..f4a80d5 100644
--- a/tests/foo/1.0/default/Android.bp
+++ b/tests/foo/1.0/default/Android.bp
@@ -3,6 +3,7 @@
 cc_library_shared {
     name: "android.hardware.tests.foo@1.0-impl",
     relative_install_path: "hw",
+    proprietary: true,
     srcs: [
         "Foo.cpp",
     ],
diff --git a/tests/inheritance/1.0/default/Android.bp b/tests/inheritance/1.0/default/Android.bp
index 638d3a4..090c36e 100644
--- a/tests/inheritance/1.0/default/Android.bp
+++ b/tests/inheritance/1.0/default/Android.bp
@@ -3,6 +3,7 @@
 cc_library_shared {
     name: "android.hardware.tests.inheritance@1.0-impl",
     relative_install_path: "hw",
+    proprietary: true,
     srcs: [
         "Fetcher.cpp",
         "Parent.cpp",
diff --git a/tests/libhwbinder/1.0/default/Android.bp b/tests/libhwbinder/1.0/default/Android.bp
index 73dcc61..0edabfc 100644
--- a/tests/libhwbinder/1.0/default/Android.bp
+++ b/tests/libhwbinder/1.0/default/Android.bp
@@ -1,6 +1,7 @@
 cc_library_shared {
     name: "android.hardware.tests.libhwbinder@1.0-impl",
     relative_install_path: "hw",
+    proprietary: true,
     srcs: [
         "Benchmark.cpp",
     ],
diff --git a/tests/memory/1.0/default/Android.bp b/tests/memory/1.0/default/Android.bp
index bde7c03..14dc08d 100644
--- a/tests/memory/1.0/default/Android.bp
+++ b/tests/memory/1.0/default/Android.bp
@@ -14,6 +14,7 @@
 
 cc_library_shared {
     name: "android.hardware.tests.memory@1.0-impl",
+    proprietary: true,
     relative_install_path: "hw",
     srcs: [
         "MemoryTest.cpp",
diff --git a/tests/pointer/1.0/default/Android.bp b/tests/pointer/1.0/default/Android.bp
index f7180f1..ab7f8fa 100644
--- a/tests/pointer/1.0/default/Android.bp
+++ b/tests/pointer/1.0/default/Android.bp
@@ -3,6 +3,7 @@
 cc_library_shared {
     name: "android.hardware.tests.pointer@1.0-impl",
     relative_install_path: "hw",
+    proprietary: true,
     srcs: [
         "Graph.cpp",
         "Pointer.cpp",