diff --git a/graphics/composer/2.1/default/android.hardware.graphics.composer@2.1-service.rc b/graphics/composer/2.1/default/android.hardware.graphics.composer@2.1-service.rc
index 3b6710b43a..5a5b51e8e1 100644
--- a/graphics/composer/2.1/default/android.hardware.graphics.composer@2.1-service.rc
+++ b/graphics/composer/2.1/default/android.hardware.graphics.composer@2.1-service.rc
@@ -4,3 +4,4 @@ service vendor.hwcomposer-2-1 /vendor/bin/hw/android.hardware.graphics.composer@
     group graphics drmrpc
     capabilities SYS_NICE
     onrestart restart surfaceflinger
+    writepid /dev/cpuset/system-background/tasks