diff --git a/packages/connect/src/connect-error.ts b/packages/connect/src/connect-error.ts
index fcb08d7e5..3b7a2b63f 100644
--- a/packages/connect/src/connect-error.ts
+++ b/packages/connect/src/connect-error.ts
@@ -160,9 +160,7 @@ export class ConnectError extends Error {
    * messages. Any decoding errors are ignored, and the detail will simply be
    * omitted from the list.
    */
-  findDetails<Desc extends DescMessage>(
-    desc: Desc,
-  ): MessageShape<Desc>[];
+  findDetails<Desc extends DescMessage>(desc: Desc): MessageShape<Desc>[];
   findDetails(registry: Registry): Message[];
   findDetails(typeOrRegistry: DescMessage | Registry): Message[] {
     const registry =
diff --git a/packages/connect/src/protocol-connect/error-json.spec.ts b/packages/connect/src/protocol-connect/error-json.spec.ts
index 29547b6ab..4e018f315 100644
--- a/packages/connect/src/protocol-connect/error-json.spec.ts
+++ b/packages/connect/src/protocol-connect/error-json.spec.ts
@@ -18,7 +18,6 @@ import { fromJson, toBinary, toJson } from "@bufbuild/protobuf";
 import { errorFromJson, errorToJson } from "./error-json.js";
 import { codeToString } from "./code-string.js";
 import { StructSchema } from "@bufbuild/protobuf/wkt";
-import type { Struct } from "@bufbuild/protobuf/wkt";
 import { base64Encode } from "@bufbuild/protobuf/wire";
 
 describe("errorToJson()", () => {
@@ -193,7 +192,7 @@ describe("errorFromJson()", () => {
       const details = error.findDetails(StructSchema);
       expect(details.length).toBe(1);
       expect(
-        toJson(StructSchema, details[0] as Struct) as Record<string, unknown>,
+        toJson(StructSchema, details[0]) as Record<string, unknown>,
       ).toEqual({ reason: "soirée 🎉", domain: "example.com" });
     });
   });