diff --git a/docs/docs/how_to/MultiQueryRetriever.ipynb b/docs/docs/how_to/MultiQueryRetriever.ipynb
index f1377124aa9..1574eb1dd63 100644
--- a/docs/docs/how_to/MultiQueryRetriever.ipynb
+++ b/docs/docs/how_to/MultiQueryRetriever.ipynb
@@ -153,7 +153,7 @@
     "\n",
     "    def parse(self, text: str) -> List[str]:\n",
     "        lines = text.strip().split(\"\\n\")\n",
-    "        return lines\n",
+    "        return list(filter(None, lines))  # Remove empty lines\n",
     "\n",
     "\n",
     "output_parser = LineListOutputParser()\n",
diff --git a/libs/langchain/langchain/retrievers/multi_query.py b/libs/langchain/langchain/retrievers/multi_query.py
index 3d1a36be476..23ba88e2a53 100644
--- a/libs/langchain/langchain/retrievers/multi_query.py
+++ b/libs/langchain/langchain/retrievers/multi_query.py
@@ -24,7 +24,7 @@ class LineListOutputParser(BaseOutputParser[List[str]]):
 
     def parse(self, text: str) -> List[str]:
         lines = text.strip().split("\n")
-        return lines
+        return list(filter(None, lines))  # Remove empty lines
 
 
 # Default prompt
diff --git a/libs/langchain/tests/unit_tests/retrievers/test_multi_query.py b/libs/langchain/tests/unit_tests/retrievers/test_multi_query.py
index 8f80e77e79b..d3529e8d97c 100644
--- a/libs/langchain/tests/unit_tests/retrievers/test_multi_query.py
+++ b/libs/langchain/tests/unit_tests/retrievers/test_multi_query.py
@@ -3,7 +3,7 @@ from typing import List
 import pytest as pytest
 from langchain_core.documents import Document
 
-from langchain.retrievers.multi_query import _unique_documents
+from langchain.retrievers.multi_query import LineListOutputParser, _unique_documents
 
 
 @pytest.mark.parametrize(
@@ -38,3 +38,16 @@ from langchain.retrievers.multi_query import _unique_documents
 )
 def test__unique_documents(documents: List[Document], expected: List[Document]) -> None:
     assert _unique_documents(documents) == expected
+
+
+@pytest.mark.parametrize(
+    "text,expected",
+    [
+        ("foo\nbar\nbaz", ["foo", "bar", "baz"]),
+        ("foo\nbar\nbaz\n", ["foo", "bar", "baz"]),
+        ("foo\n\nbar", ["foo", "bar"]),
+    ],
+)
+def test_line_list_output_parser(text: str, expected: List[str]) -> None:
+    parser = LineListOutputParser()
+    assert parser.parse(text) == expected