diff --git a/gpu/TODO-webgpu.h b/gpu/TODO-webgpu.h
index f6a9ca84..8d1442dc 100644
--- a/gpu/TODO-webgpu.h
+++ b/gpu/TODO-webgpu.h
@@ -1,4 +1,3 @@
-typedef void (*WGPUCompilationInfoCallback)(WGPUCompilationInfoRequestStatus status, WGPUCompilationInfo const * compilationInfo, void * userdata);
 typedef void (*WGPUCreateComputePipelineAsyncCallback)(WGPUCreatePipelineAsyncStatus status, WGPUComputePipeline pipeline, char const * message, void * userdata);
 typedef void (*WGPUCreateRenderPipelineAsyncCallback)(WGPUCreatePipelineAsyncStatus status, WGPURenderPipeline pipeline, char const * message, void * userdata);
 typedef void (*WGPUDeviceLostCallback)(WGPUDeviceLostReason reason, char const * message, void * userdata);
diff --git a/gpu/src/types.zig b/gpu/src/types.zig
index fb6c68be..f2923625 100644
--- a/gpu/src/types.zig
+++ b/gpu/src/types.zig
@@ -74,6 +74,8 @@ pub const CompareFunction = enum(u32) {
     always = 0x00000008,
 };
 
+pub const CompilationInfoCallback = fn (status: CompilationInfoRequestStatus, compilation_info: *const CompilationInfo, userdata: *anyopaque) callconv(.C) void;
+
 pub const CompilationInfoRequestStatus = enum(u32) {
     success = 0x00000000,
     err = 0x00000001,