diff --git a/components/compositing/compositor.rs b/components/compositing/compositor.rs
index 75bd9a3f6ca..bf19468781f 100644
--- a/components/compositing/compositor.rs
+++ b/components/compositing/compositor.rs
@@ -492,9 +492,12 @@ impl<Window: WindowMethods> IOCompositor<Window> {
 
             (Msg::CollectMemoryReports(reports_chan), ShutdownState::NotShuttingDown) => {
                 let mut reports = vec![];
+                let name = "compositor-task";
                 reports.push(mem::Report {
-                    path: path!["compositor-task", "buffer-map"],
-                    size: self.buffer_map.mem(),
+                    path: path![name, "buffer-map"], size: self.buffer_map.mem(),
+                });
+                reports.push(mem::Report {
+                    path: path![name, "layer-tree"], size: self.scene.get_memory_usage(),
                 });
                 reports_chan.send(reports);
             }
diff --git a/components/servo/Cargo.lock b/components/servo/Cargo.lock
index 94b8ada8efd..d0b917ad040 100644
--- a/components/servo/Cargo.lock
+++ b/components/servo/Cargo.lock
@@ -678,7 +678,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "layers"
 version = "0.1.0"
-source = "git+https://github.com/servo/rust-layers#abc4f3803dde8d818343984a28d2e3d1fdad11a3"
+source = "git+https://github.com/servo/rust-layers#1c9628618803c161753fd9f00f5ef781660ce11e"
 dependencies = [
  "azure 0.1.0 (git+https://github.com/servo/rust-azure)",
  "cgl 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
diff --git a/ports/cef/Cargo.lock b/ports/cef/Cargo.lock
index b27e8cc7490..984b5d50660 100644
--- a/ports/cef/Cargo.lock
+++ b/ports/cef/Cargo.lock
@@ -670,7 +670,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "layers"
 version = "0.1.0"
-source = "git+https://github.com/servo/rust-layers#abc4f3803dde8d818343984a28d2e3d1fdad11a3"
+source = "git+https://github.com/servo/rust-layers#1c9628618803c161753fd9f00f5ef781660ce11e"
 dependencies = [
  "azure 0.1.0 (git+https://github.com/servo/rust-azure)",
  "cgl 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
diff --git a/ports/gonk/Cargo.lock b/ports/gonk/Cargo.lock
index 7cac84c7df3..90b28852d44 100644
--- a/ports/gonk/Cargo.lock
+++ b/ports/gonk/Cargo.lock
@@ -604,7 +604,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "layers"
 version = "0.1.0"
-source = "git+https://github.com/servo/rust-layers#abc4f3803dde8d818343984a28d2e3d1fdad11a3"
+source = "git+https://github.com/servo/rust-layers#1c9628618803c161753fd9f00f5ef781660ce11e"
 dependencies = [
  "azure 0.1.0 (git+https://github.com/servo/rust-azure)",
  "cgl 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",