diff --git a/libs/bufferstreams/Android.bp b/libs/bufferstreams/Android.bp
index 365fc45..6c2a980 100644
--- a/libs/bufferstreams/Android.bp
+++ b/libs/bufferstreams/Android.bp
@@ -19,6 +19,7 @@
 aconfig_declarations {
     name: "bufferstreams_flags",
     package: "com.android.graphics.bufferstreams.flags",
+    container: "system",
     srcs: [
         "aconfig/bufferstreams_flags.aconfig",
     ],
diff --git a/libs/bufferstreams/aconfig/bufferstreams_flags.aconfig b/libs/bufferstreams/aconfig/bufferstreams_flags.aconfig
index e258725..d0f7812 100644
--- a/libs/bufferstreams/aconfig/bufferstreams_flags.aconfig
+++ b/libs/bufferstreams/aconfig/bufferstreams_flags.aconfig
@@ -1,4 +1,5 @@
 package: "com.android.graphics.bufferstreams.flags"
+container: "system"
 
 flag {
   name: "bufferstreams_steel_thread"
diff --git a/libs/gui/Android.bp b/libs/gui/Android.bp
index eb4d3df..4c3cc6c 100644
--- a/libs/gui/Android.bp
+++ b/libs/gui/Android.bp
@@ -23,6 +23,7 @@
 aconfig_declarations {
     name: "libgui_flags",
     package: "com.android.graphics.libgui.flags",
+    container: "system",
     srcs: ["libgui_flags.aconfig"],
 }
 
diff --git a/libs/gui/libgui_flags.aconfig b/libs/gui/libgui_flags.aconfig
index b081030..3864699 100644
--- a/libs/gui/libgui_flags.aconfig
+++ b/libs/gui/libgui_flags.aconfig
@@ -1,4 +1,5 @@
 package: "com.android.graphics.libgui.flags"
+container: "system"
 
 flag {
   name: "bq_setframerate"
diff --git a/libs/input/Android.bp b/libs/input/Android.bp
index e5fb2c5..8b69339 100644
--- a/libs/input/Android.bp
+++ b/libs/input/Android.bp
@@ -39,6 +39,7 @@
 aconfig_declarations {
     name: "com.android.input.flags-aconfig",
     package: "com.android.input.flags",
+    container: "system",
     srcs: ["input_flags.aconfig"],
 }
 
diff --git a/libs/input/input_flags.aconfig b/libs/input/input_flags.aconfig
index ec7a284..5af4855 100644
--- a/libs/input/input_flags.aconfig
+++ b/libs/input/input_flags.aconfig
@@ -1,4 +1,5 @@
 package: "com.android.input.flags"
+container: "system"
 
 flag {
   name: "enable_outbound_event_verification"