diff --git a/libexternal/external.cpp b/libexternal/external.cpp
index e3de5ce..3e92f53 100644
--- a/libexternal/external.cpp
+++ b/libexternal/external.cpp
@@ -247,9 +247,9 @@
     char actionsafeWidth[PROPERTY_VALUE_MAX];
     char actionsafeHeight[PROPERTY_VALUE_MAX];
     snprintf(actionsafeWidth, sizeof(actionsafeWidth), "%d", w);
-    property_set("hw.actionsafe.width", actionsafeWidth);
+    property_set("persist.sys.actionsafe.width", actionsafeWidth);
     snprintf(actionsafeHeight, sizeof(actionsafeHeight), "%d", h);
-    property_set("hw.actionsafe.height", actionsafeHeight);
+    property_set("persist.sys.actionsafe.height", actionsafeHeight);
     setExternalDisplay(true, mHdmiFbNum);
 }