diff --git a/services/surfaceflinger/LayerProtoHelper.cpp b/services/surfaceflinger/LayerProtoHelper.cpp
index 02383a6..2d6d33c 100644
--- a/services/surfaceflinger/LayerProtoHelper.cpp
+++ b/services/surfaceflinger/LayerProtoHelper.cpp
@@ -49,8 +49,6 @@
     Region::const_iterator const tail = region.end();
     // Use a lambda do avoid writing the object header when the object is empty
     RegionProto* regionProto = getRegionProto();
-    uint64_t address = reinterpret_cast<uint64_t>(&region);
-    regionProto->set_id(address);
     while (head != tail) {
         std::function<RectProto*()> getProtoRect = [&]() { return regionProto->add_rect(); };
         writeToProto(*head, getProtoRect);
diff --git a/services/surfaceflinger/layerproto/LayerProtoParser.cpp b/services/surfaceflinger/layerproto/LayerProtoParser.cpp
index 7ab57f9..7288232 100644
--- a/services/surfaceflinger/layerproto/LayerProtoParser.cpp
+++ b/services/surfaceflinger/layerproto/LayerProtoParser.cpp
@@ -132,7 +132,6 @@
 
 LayerProtoParser::Region LayerProtoParser::generateRegion(const RegionProto& regionProto) {
     LayerProtoParser::Region region;
-    region.id = regionProto.id();
     for (int i = 0; i < regionProto.rect_size(); i++) {
         const RectProto& rectProto = regionProto.rect(i);
         region.rects.push_back(generateRect(rectProto));
diff --git a/services/surfaceflinger/layerproto/layers.proto b/services/surfaceflinger/layerproto/layers.proto
index a0fb0a0..fd4695e 100644
--- a/services/surfaceflinger/layerproto/layers.proto
+++ b/services/surfaceflinger/layerproto/layers.proto
@@ -117,7 +117,7 @@
 }
 
 message RegionProto {
-  uint64 id = 1;
+  reserved 1;  // Previously: uint64 id
   repeated RectProto rect = 2;
 }