diff --git a/libs/langchain/langchain/retrievers/self_query/qdrant.py b/libs/langchain/langchain/retrievers/self_query/qdrant.py
index 55dc8d3457..e76c716db2 100644
--- a/libs/langchain/langchain/retrievers/self_query/qdrant.py
+++ b/libs/langchain/langchain/retrievers/self_query/qdrant.py
@@ -18,6 +18,13 @@ if TYPE_CHECKING:
 class QdrantTranslator(Visitor):
     """Translate `Qdrant` internal query language elements to valid filters."""
 
+    allowed_operators = (
+        Operator.AND,
+        Operator.OR,
+        Operator.NOT,
+    )
+    """Subset of allowed logical operators."""
+
     allowed_comparators = (
         Comparator.EQ,
         Comparator.LT,