diff --git a/src/io/cache.rs b/src/io/cache.rs
index 5763b969..4b5a0123 100644
--- a/src/io/cache.rs
+++ b/src/io/cache.rs
@@ -64,7 +64,7 @@ impl Cache {
                     let mut geometry: VertexBuffers<GpuVertexUniform, IndexDataType> =
                         VertexBuffers::new();
 
-                    tile.tesselate_stroke(&mut geometry, 1);
+                    tile.tesselate_stroke(&mut geometry);
                     self.responses.push(TesselatedTile {
                         id: current_id,
                         coords,
diff --git a/src/render/shader_ffi.rs b/src/render/shader_ffi.rs
index ff0e3fad..743ecbaf 100644
--- a/src/render/shader_ffi.rs
+++ b/src/render/shader_ffi.rs
@@ -50,25 +50,17 @@ impl GlobalsUniform {
 pub struct GpuVertexUniform {
     pub position: Vec2f32,
     pub normal: Vec2f32,
-    pub tile_id: u32,
-    _pad1: i32, // _padX aligns it to 8 bytes = AlignOf(Vec2f32=vec2<f32>):
-                // https://gpuweb.github.io/gpuweb/wgsl/#alignment-and-size
 }
 
 impl GpuVertexUniform {
-    pub fn new(position: Vec2f32, normal: Vec2f32, tile_id: u32) -> Self {
-        Self {
-            position,
-            normal,
-            tile_id,
-            _pad1: Default::default(),
-        }
+    pub fn new(position: Vec2f32, normal: Vec2f32) -> Self {
+        Self { position, normal }
     }
 }
 
 impl Default for GpuVertexUniform {
     fn default() -> Self {
-        GpuVertexUniform::new([0.0, 0.0], [0.0, 0.0], 0)
+        GpuVertexUniform::new([0.0, 0.0], [0.0, 0.0])
     }
 }
 
diff --git a/src/render/shaders/mod.rs b/src/render/shaders/mod.rs
index 03029814..b344187b 100644
--- a/src/render/shaders/mod.rs
+++ b/src/render/shaders/mod.rs
@@ -88,12 +88,6 @@ pub mod tile {
                         format: wgpu::VertexFormat::Float32x2,
                         shader_location: 1,
                     },
-                    // tile_id
-                    wgpu::VertexAttribute {
-                        offset: 2 * wgpu::VertexFormat::Float32x2.size(),
-                        format: wgpu::VertexFormat::Uint32,
-                        shader_location: 2,
-                    },
                 ],
             },
             wgpu::VertexBufferLayout {
diff --git a/src/render/shaders/tile.vertex.wgsl b/src/render/shaders/tile.vertex.wgsl
index 92d7a570..b61b5981 100644
--- a/src/render/shaders/tile.vertex.wgsl
+++ b/src/render/shaders/tile.vertex.wgsl
@@ -19,7 +19,6 @@ struct VertexOutput {
 fn main(
     [[location(0)]] position: vec2<f32>,
     [[location(1)]] normal: vec2<f32>,
-    [[location(2)]] tile_id: u32,
     [[location(3)]] color: vec4<f32>,
     [[location(4)]] translate: vec3<f32>,
     [[builtin(instance_index)]] instance_idx: u32 // instance_index is used when we have multiple instances of the same "object"