diff --git a/lib/errors/index.js b/lib/errors/index.js
index 9713b7777f..5f6b4af510 100644
--- a/lib/errors/index.js
+++ b/lib/errors/index.js
@@ -31,13 +31,16 @@ class Exception {
 
   getErrorDetails(config) {
     const errorDetails = errorHelper.extractErrorInformation(null, this.error, config)
-    errorDetails.expected = errorHelper.isExpected(
-      errorDetails.type,
-      errorDetails.message,
-      null,
-      config,
-      urltils
-    )
+    if (typeof this._expected === 'undefined') {
+      this._expected = errorHelper.isExpected(
+        errorDetails.type,
+        errorDetails.message,
+        null,
+        config,
+        urltils
+      )
+    }
+    errorDetails.expected = this._expected
 
     return errorDetails
   }