diff --git a/integrations/pinecone/src/pinecone_haystack/document_store.py b/integrations/pinecone/src/pinecone_haystack/document_store.py
index af295e0c0..e9a063f18 100644
--- a/integrations/pinecone/src/pinecone_haystack/document_store.py
+++ b/integrations/pinecone/src/pinecone_haystack/document_store.py
@@ -158,6 +158,8 @@ def filter_documents(self, filters: Optional[Dict[str, Any]] = None) -> List[Doc
         if not filters:
             # in this case, we try to return all documents but Pinecone has some limits
             documents = self._embedding_retrieval(query_embedding=self._dummy_vector, top_k=TOP_K_LIMIT)
+            for doc in documents:
+                doc.score = None
 
             total_docs_number = self.count_documents()
             if total_docs_number > TOP_K_LIMIT: