diff --git a/gpu/TODO-webgpu.h b/gpu/TODO-webgpu.h
index 101166b9..e8a699e0 100644
--- a/gpu/TODO-webgpu.h
+++ b/gpu/TODO-webgpu.h
@@ -1,9 +1,3 @@
-typedef struct WGPUConstantEntry {
-    next_in_chain: *const ChainedStruct,
-    char const * key;
-    value: f64,
-} WGPUConstantEntry;
-
 typedef struct WGPUCopyTextureForBrowserOptions {
     next_in_chain: *const ChainedStruct,
     flip_y: bool,
diff --git a/gpu/src/types.zig b/gpu/src/types.zig
index 4aeb80d8..a7f87aa4 100644
--- a/gpu/src/types.zig
+++ b/gpu/src/types.zig
@@ -440,6 +440,12 @@ pub const CompilationMessage = extern struct {
     length: u64,
 };
 
+pub const ConstantEntry = extern struct {
+    next_in_chain: *const ChainedStruct,
+    key: [*:0]const u8,
+    value: f64,
+};
+
 test "BackendType name" {
     try testing.expectEqualStrings("Vulkan", BackendType.vulkan.name());
 }