diff --git a/gpu/TODO-webgpu.h b/gpu/TODO-webgpu.h
index 1c093311..166c9a0a 100644
--- a/gpu/TODO-webgpu.h
+++ b/gpu/TODO-webgpu.h
@@ -1,10 +1,3 @@
-typedef struct WGPUBufferBindingLayout {
-    WGPUChainedStruct const * nextInChain;
-    WGPUBufferBindingType type;
-    bool hasDynamicOffset;
-    uint64_t minBindingSize;
-} WGPUBufferBindingLayout;
-
 typedef struct WGPUBufferDescriptor {
     WGPUChainedStruct const * nextInChain;
     char const * label; // nullable
diff --git a/gpu/src/Buffer.zig b/gpu/src/Buffer.zig
index bcca5c95..190196a0 100644
--- a/gpu/src/Buffer.zig
+++ b/gpu/src/Buffer.zig
@@ -1,4 +1,5 @@
 const std = @import("std");
+const ChainedStruct = @import("types.zig").ChainedStruct;
 
 pub const Buffer = enum(usize) {
     _,
@@ -48,4 +49,11 @@ pub const Buffer = enum(usize) {
             return @truncate(u10, @bitCast(u32, a)) == @truncate(u10, @bitCast(u32, b));
         }
     };
+
+    pub const BindingLayout = extern struct {
+        next_in_chain: *const ChainedStruct,
+        type: BindingType,
+        has_dynamic_offset: bool = false,
+        min_binding_size: u64 = 0,
+    };
 };