diff --git a/core/src/backend/render.rs b/core/src/backend/render.rs
index 41aa6c42a..2b9cf35d0 100644
--- a/core/src/backend/render.rs
+++ b/core/src/backend/render.rs
@@ -1,9 +1,10 @@
 use crate::shape_utils::DistilledShape;
 pub use crate::{transform::Transform, Color};
+use downcast_rs::Downcast;
 use std::io::Read;
 pub use swf;
 
-pub trait RenderBackend {
+pub trait RenderBackend: Downcast {
     fn set_viewport_dimensions(&mut self, width: u32, height: u32);
     fn register_shape(&mut self, shape: DistilledShape) -> ShapeHandle;
     fn register_glyph_shape(&mut self, shape: &swf::Glyph) -> ShapeHandle;
@@ -31,6 +32,7 @@ pub trait RenderBackend {
     fn activate_mask(&mut self);
     fn pop_mask(&mut self);
 }
+impl_downcast!(RenderBackend);
 
 #[derive(Copy, Clone, Debug)]
 pub struct ShapeHandle(pub usize);
diff --git a/core/src/context.rs b/core/src/context.rs
index a68b1d95a..c34158227 100644
--- a/core/src/context.rs
+++ b/core/src/context.rs
@@ -58,7 +58,7 @@ pub struct UpdateContext<'a, 'gc, 'gc_context> {
     pub navigator: &'a mut (dyn NavigatorBackend + 'a),
 
     /// The renderer, used by the display objects to draw themselves.
-    pub renderer: &'a mut (dyn RenderBackend + 'a),
+    pub renderer: &'a mut dyn RenderBackend,
 
     /// The input backend, used to detect user interactions.
     pub input: &'a mut dyn InputBackend,
diff --git a/render/wgpu/src/target.rs b/render/wgpu/src/target.rs
index a4326e844..8ff29efd2 100644
--- a/render/wgpu/src/target.rs
+++ b/render/wgpu/src/target.rs
@@ -5,7 +5,7 @@ pub trait RenderTargetFrame: Debug {
     fn view(&self) -> &wgpu::TextureView;
 }
 
-pub trait RenderTarget: Debug {
+pub trait RenderTarget: Debug + 'static {
     type Frame: RenderTargetFrame;
 
     fn resize(&mut self, device: &wgpu::Device, width: u32, height: u32);