diff --git a/common/changes/@itwin/core-backend/serialize-error_2024-10-01-13-46.json b/common/changes/@itwin/core-backend/serialize-error_2024-10-01-13-46.json
new file mode 100644
index 000000000000..99b35bb89b62
--- /dev/null
+++ b/common/changes/@itwin/core-backend/serialize-error_2024-10-01-13-46.json
@@ -0,0 +1,10 @@
+{
+  "changes": [
+    {
+      "packageName": "@itwin/core-backend",
+      "comment": "",
+      "type": "none"
+    }
+  ],
+  "packageName": "@itwin/core-backend"
+}
\ No newline at end of file
diff --git a/core/backend/src/rpc/web/response.ts b/core/backend/src/rpc/web/response.ts
index 89ee807bac92..1485e66d0d81 100644
--- a/core/backend/src/rpc/web/response.ts
+++ b/core/backend/src/rpc/web/response.ts
@@ -6,7 +6,7 @@
  * @module RpcInterface
  */
 
-import { Logger } from "@itwin/core-bentley";
+import { BentleyError, Logger } from "@itwin/core-bentley";
 import {
   CommonLoggerCategory,
   HttpServerRequest,
@@ -157,7 +157,7 @@ function logResponse(request: SerializedRpcRequest, statusCode: number, resultOb
     path: request.path,
     operation: request.operation,
     statusCode,
-    errorObj: resultObj instanceof Error ? resultObj : undefined,
+    errorObj: resultObj instanceof Error ? BentleyError.getErrorProps(resultObj) : undefined,
   };
 
   if (statusCode < 400)