diff --git a/compositor/LayerData.h b/compositor/LayerData.h
index 962141f..90ae7be 100644
--- a/compositor/LayerData.h
+++ b/compositor/LayerData.h
@@ -30,6 +30,8 @@
 
 class DrmFbIdHandle;
 
+using ILayerId = int64_t;
+
 /* Rotation is defined in the clockwise direction */
 /* The flip is done before rotation */
 struct LayerTransform {