diff --git a/include/private/gui/LayerState.h b/include/private/gui/LayerState.h
index fac5d2c..6d2b082 100644
--- a/include/private/gui/LayerState.h
+++ b/include/private/gui/LayerState.h
@@ -58,6 +58,7 @@
         eOverrideScalingModeChanged = 0x00000800,
         eGeometryAppliesWithResize  = 0x00001000,
         eReparentChildren           = 0x00002000,
+        eDetachChildren             = 0x00004000
     };
 
     layer_state_t()