diff --git a/hwc2_device/HwcDisplayConfigs.h b/hwc2_device/HwcDisplayConfigs.h
index cb38625..7450b8d 100644
--- a/hwc2_device/HwcDisplayConfigs.h
+++ b/hwc2_device/HwcDisplayConfigs.h
@@ -45,6 +45,8 @@
 
   int active_config_id = 0;
   int preferred_config_id = 0;
+
+  int last_config_id = 1;
 };
 
 }  // namespace android