diff --git a/frontend/sync-client/src/services/authentication-error.ts b/frontend/sync-client/src/errors/authentication-error.ts
similarity index 100%
rename from frontend/sync-client/src/services/authentication-error.ts
rename to frontend/sync-client/src/errors/authentication-error.ts
diff --git a/frontend/sync-client/src/file-operations/file-not-found-error.ts b/frontend/sync-client/src/errors/file-not-found-error.ts
similarity index 100%
rename from frontend/sync-client/src/file-operations/file-not-found-error.ts
rename to frontend/sync-client/src/errors/file-not-found-error.ts
diff --git a/frontend/sync-client/src/services/server-version-mismatch-error.ts b/frontend/sync-client/src/errors/server-version-mismatch-error.ts
similarity index 100%
rename from frontend/sync-client/src/services/server-version-mismatch-error.ts
rename to frontend/sync-client/src/errors/server-version-mismatch-error.ts
diff --git a/frontend/sync-client/src/services/sync-reset-error.ts b/frontend/sync-client/src/errors/sync-reset-error.ts
similarity index 100%
rename from frontend/sync-client/src/services/sync-reset-error.ts
rename to frontend/sync-client/src/errors/sync-reset-error.ts
diff --git a/frontend/sync-client/src/index.ts b/frontend/sync-client/src/index.ts
index cfcc5071..d90da7bf 100644
--- a/frontend/sync-client/src/index.ts
+++ b/frontend/sync-client/src/index.ts
@@ -27,8 +27,8 @@ export type { PersistenceProvider } from "./persistence/persistence";
 export type { CursorSpan } from "./services/types/CursorSpan";
 export type { ClientCursors } from "./services/types/ClientCursors";
 export type { NetworkConnectionStatus } from "./types/network-connection-status";
-export type { ServerVersionMismatchError } from "./services/server-version-mismatch-error";
-export type { AuthenticationError } from "./services/authentication-error";
+export type { ServerVersionMismatchError } from "./errors/server-version-mismatch-error";
+export type { AuthenticationError } from "./errors/authentication-error";
 export type { MaybeOutdatedClientCursors } from "./types/maybe-outdated-client-cursors";
 export { DocumentSyncStatus } from "./types/document-sync-status";
 export { SyncClient } from "./sync-client";
diff --git a/frontend/sync-client/src/services/fetch-controller.test.ts b/frontend/sync-client/src/services/fetch-controller.test.ts
index 94fa8424..a1b791a6 100644
--- a/frontend/sync-client/src/services/fetch-controller.test.ts
+++ b/frontend/sync-client/src/services/fetch-controller.test.ts
@@ -3,7 +3,7 @@ import { describe, it, mock, beforeEach, afterEach } from "node:test";
 import assert from "node:assert";
 import { FetchController } from "./fetch-controller";
 import { Logger } from "../tracing/logger";
-import { SyncResetError } from "./sync-reset-error";
+import { SyncResetError } from "../errors/sync-reset-error";
 import { sleep } from "../utils/sleep";
 
 describe("FetchController", () => {
diff --git a/frontend/sync-client/src/services/fetch-controller.ts b/frontend/sync-client/src/services/fetch-controller.ts
index 08ca6c52..e30739da 100644
--- a/frontend/sync-client/src/services/fetch-controller.ts
+++ b/frontend/sync-client/src/services/fetch-controller.ts
@@ -1,6 +1,6 @@
 import type { Logger } from "../tracing/logger";
 import { createPromise } from "../utils/create-promise";
-import { SyncResetError } from "./sync-reset-error";
+import { SyncResetError } from "../errors/sync-reset-error";
 
 /**
  * Offers a resettable fetch implementation that waits until syncing is enabled
diff --git a/frontend/sync-client/src/services/server-config.ts b/frontend/sync-client/src/services/server-config.ts
index 309c637c..b48e9802 100644
--- a/frontend/sync-client/src/services/server-config.ts
+++ b/frontend/sync-client/src/services/server-config.ts
@@ -1,6 +1,6 @@
 import { SUPPORTED_API_VERSION } from "../consts";
-import { AuthenticationError } from "./authentication-error";
-import { ServerVersionMismatchError } from "./server-version-mismatch-error";
+import { AuthenticationError } from "../errors/authentication-error";
+import { ServerVersionMismatchError } from "../errors/server-version-mismatch-error";
 import type { SyncService } from "./sync-service";
 import type { PingResponse } from "./types/PingResponse";
 
diff --git a/frontend/sync-client/src/services/sync-service.ts b/frontend/sync-client/src/services/sync-service.ts
index 8190a638..8dd0de68 100644
--- a/frontend/sync-client/src/services/sync-service.ts
+++ b/frontend/sync-client/src/services/sync-service.ts
@@ -8,7 +8,7 @@ import type { Logger } from "../tracing/logger";
 import type { Settings } from "../persistence/settings";
 import type { FetchController } from "./fetch-controller";
 import { sleep } from "../utils/sleep";
-import { SyncResetError } from "./sync-reset-error";
+import { SyncResetError } from "../errors/sync-reset-error";
 import type { SerializedError } from "./types/SerializedError";
 import type { DocumentVersionWithoutContent } from "./types/DocumentVersionWithoutContent";
 import type { DocumentUpdateResponse } from "./types/DocumentUpdateResponse";
diff --git a/frontend/sync-client/src/sync-operations/unrestricted-syncer.ts b/frontend/sync-client/src/sync-operations/unrestricted-syncer.ts
index 7acc246a..5b80d75b 100644
--- a/frontend/sync-client/src/sync-operations/unrestricted-syncer.ts
+++ b/frontend/sync-client/src/sync-operations/unrestricted-syncer.ts
@@ -23,8 +23,8 @@ import { base64ToBytes } from "byte-base64";
 import type { Settings } from "../persistence/settings";
 import type { FileOperations } from "../file-operations/file-operations";
 import { createPromise } from "../utils/create-promise";
-import { FileNotFoundError } from "../file-operations/file-not-found-error";
-import { SyncResetError } from "../services/sync-reset-error";
+import { FileNotFoundError } from "../errors/file-not-found-error";
+import { SyncResetError } from "../errors/sync-reset-error";
 import { globsToRegexes } from "../utils/globs-to-regexes";
 import type { DocumentVersion } from "../services/types/DocumentVersion";
 import type { DocumentUpdateResponse } from "../services/types/DocumentUpdateResponse";
diff --git a/frontend/sync-client/src/utils/data-structures/locks.test.ts b/frontend/sync-client/src/utils/data-structures/locks.test.ts
index 9beb867a..d1dcc6d7 100644
--- a/frontend/sync-client/src/utils/data-structures/locks.test.ts
+++ b/frontend/sync-client/src/utils/data-structures/locks.test.ts
@@ -5,7 +5,7 @@ import type { RelativePath } from "../../persistence/database";
 import { Locks } from "./locks";
 import { awaitAll } from "../await-all";
 import { sleep } from "../sleep";
-import { SyncResetError } from "../../services/sync-reset-error";
+import { SyncResetError } from "../../errors/sync-reset-error";
 
 describe("withLock", () => {
     const testPath: RelativePath = "test/document/path";
diff --git a/frontend/sync-client/src/utils/data-structures/locks.ts b/frontend/sync-client/src/utils/data-structures/locks.ts
index d3ab1b26..743e8c6a 100644
--- a/frontend/sync-client/src/utils/data-structures/locks.ts
+++ b/frontend/sync-client/src/utils/data-structures/locks.ts
@@ -1,4 +1,4 @@
-import { SyncResetError } from "../../services/sync-reset-error";
+import { SyncResetError } from "../../errors/sync-reset-error";
 import type { Logger } from "../../tracing/logger";
 import { awaitAll } from "../await-all";