diff --git a/packages/node_modules/pouchdb-errors/src/index.js b/packages/node_modules/pouchdb-errors/src/index.js
index d36c63bf11..d4b79cf630 100644
--- a/packages/node_modules/pouchdb-errors/src/index.js
+++ b/packages/node_modules/pouchdb-errors/src/index.js
@@ -3,7 +3,6 @@ class PouchError extends Error {
     super(reason);
     this.status = status;
     this.name = name;
-    // TODO this looks pointless:
     this.error = true;
   }
 
@@ -42,15 +41,24 @@ const FILE_EXISTS = { status:412, name:'file_exists', message:'The database coul
 const MISSING_STUB = { status:412, name:'missing_stub', message:'A pre-existing attachment stub wasn\'t found' };
 const INVALID_URL = { status:413, name:'invalid_url', message:'Provided URL is invalid' };
 
+const PROTECTED_PROPS = new Set([
+  'status',
+  'name',
+  'message',
+  'reason',
+  'stack',
+]);
+
 function createError(error, reason) {
   const pouchError = new PouchError(error.status, error.name, error.message);
 
   // inherit error properties from our parent error manually
   // so as to allow proper JSON parsing.
   for (const name of Object.getOwnPropertyNames(error)) {
-    if (typeof error[name] !== 'function' && name !== 'message' && name !== 'status' && name !== 'error' && name !== 'name' && name !== 'stack') {
-      pouchError[name] = error[name];
+    if (typeof error[name] === 'function' || PROTECTED_PROPS.has(name)) {
+      continue;
     }
+    pouchError[name] = error[name];
   }
 
   if (reason !== undefined) {