diff --git a/libs/langchain/langchain/retrievers/self_query/base.py b/libs/langchain/langchain/retrievers/self_query/base.py
index 092478f840..f631f4e547 100644
--- a/libs/langchain/langchain/retrievers/self_query/base.py
+++ b/libs/langchain/langchain/retrievers/self_query/base.py
@@ -168,6 +168,14 @@ def _get_builtin_translator(vectorstore: VectorStore) -> Visitor:
             if isinstance(vectorstore, Chroma):
                 return ChromaTranslator()
 
+        try:
+            from langchain_postgres import PGVector
+        except ImportError:
+            pass
+        else:
+            if isinstance(vectorstore, PGVector):
+                return PGVectorTranslator()
+
         raise ValueError(
             f"Self query retriever with Vector Store type {vectorstore.__class__}"
             f" not supported."