diff --git a/libwvdrmengine/Android.mk b/libwvdrmengine/Android.mk
index d88c9c64..2b4bb7a8 100644
--- a/libwvdrmengine/Android.mk
+++ b/libwvdrmengine/Android.mk
@@ -4,11 +4,29 @@
 LOCAL_PATH := $(call my-dir)
 
 # -----------------------------------------------------------------------------
-#  Copies move script to /system/bin.
-#  The mv command preserves SELinux labels(i.e. media_data_file).
-#  We need to run restorecon to put the correct context after the move.
-#  However, restorecon is not implemented for /vendor/bin, so we put
-#  the script in /system/bin.
+# Copies move script to /system/bin.
+#
+# The move script is only needed for existing devices that
+# are running Widevine DRM and are upgrading to Pi or later
+# Android releases. New devices release with Pi and future
+# Android releases do not need to run this script.
+#
+# To run this script, vendor must add the dependency to the
+# corresponding device.mk file and build from ANDROID_ROOT.
+#
+# For example:
+#   PRODUCT_PACKAGES += \
+#       android.hardware.drm@1.0-impl \
+#       android.hardware.drm@1.0-service \
+#       android.hardware.drm@1.0-service.widevine \
+#       move_widevine_data.sh
+#
+# In addition, vendor needs to update device SELinux policy.
+#
+# The mv command preserves SELinux labels(i.e. media_data_file).
+# We need to run restorecon to put the correct context after the move.
+# However, restorecon is not implemented for /vendor/bin, so we put
+# the script in /system/bin.
 #
 include $(CLEAR_VARS)
 
@@ -48,7 +66,6 @@ LOCAL_HEADER_LIBRARIES := \
 
 LOCAL_MODULE := android.hardware.drm@1.0-service.widevine
 LOCAL_INIT_RC := src_hidl/android.hardware.drm@1.0-service.widevine.rc
-LOCAL_REQUIRED_MODULES := move_widevine_data.sh
 LOCAL_MODULE_PATH := $(TARGET_OUT_VENDOR)/bin/hw
 LOCAL_PROPRIETARY_MODULE := true
 LOCAL_MODULE_OWNER := widevine