diff --git a/rootdir/ueventd.rc b/rootdir/ueventd.rc
index 2cf02650b..a60cfc5cf 100644
--- a/rootdir/ueventd.rc
+++ b/rootdir/ueventd.rc
@@ -5,6 +5,8 @@
 /dev/tty                  0666   root       root
 /dev/random               0666   root       root
 /dev/urandom              0666   root       root
+# Make HW RNG readable by group system to let EntropyMixer read it.
+/dev/hw_random            0440   root       system
 /dev/ashmem               0666   root       root
 /dev/binder               0666   root       root