diff --git a/gpu/TODO-webgpu.h b/gpu/TODO-webgpu.h
index 4c17603e..fa2c63c4 100644
--- a/gpu/TODO-webgpu.h
+++ b/gpu/TODO-webgpu.h
@@ -1,8 +1,3 @@
-typedef struct WGPUCommandBufferDescriptor {
-    next_in_chain: *const ChainedStruct,
-    label: ?[*:0]const u8 = null,
-} WGPUCommandBufferDescriptor;
-
 typedef struct WGPUCommandEncoderDescriptor {
     next_in_chain: *const ChainedStruct,
     label: ?[*:0]const u8 = null,
diff --git a/gpu/src/command_buffer.zig b/gpu/src/command_buffer.zig
index f8354a07..23b5ac0c 100644
--- a/gpu/src/command_buffer.zig
+++ b/gpu/src/command_buffer.zig
@@ -1,6 +1,13 @@
+const ChainedStruct = @import("types.zig").ChainedStruct;
+
 pub const CommandBuffer = enum(usize) {
     _,
 
     // TODO: verify there is a use case for nullable value of this type.
     pub const none: CommandBuffer = @intToEnum(CommandBuffer, 0);
+
+    pub const Descriptor = struct {
+        next_in_chain: *const ChainedStruct,
+        label: ?[*:0]const u8 = null,
+    };
 };