diff --git a/src/authorization-response/PresentationExchange.ts b/src/authorization-response/PresentationExchange.ts
index 319c425c..96d40d08 100644
--- a/src/authorization-response/PresentationExchange.ts
+++ b/src/authorization-response/PresentationExchange.ts
@@ -228,7 +228,7 @@ export class PresentationExchange {
       const definitionRefs = extractDataFromPath(authorizationRequestPayload, '$.presentation_definition_uri');
       const definitionRefsFromList = extractDataFromPath(authorizationRequestPayload, '$.presentation_definition_uri[*]');
       const hasPD = (definitions && definitions.length > 0) || (definitionsFromList && definitionsFromList.length > 0);
-      const hasPdRef = (definitionRefs && definitionRefs.length > 0) || (definitionRefsFromList && definitionsFromList.length > 0);
+      const hasPdRef = (definitionRefs && definitionRefs.length > 0) || (definitionRefsFromList && definitionRefsFromList.length > 0);
       if (hasPD && hasPdRef) {
         throw new Error(SIOPErrors.REQUEST_CLAIMS_PRESENTATION_DEFINITION_BY_REF_AND_VALUE_NON_EXCLUSIVE);
       }