diff --git a/elasticsearch/_async/client/logstash.py b/elasticsearch/_async/client/logstash.py
index 1de847fa5..e6e7adc27 100644
--- a/elasticsearch/_async/client/logstash.py
+++ b/elasticsearch/_async/client/logstash.py
@@ -62,7 +62,7 @@ async def delete_pipeline(
     async def get_pipeline(
         self,
         *,
-        id: t.Union[str, t.Sequence[str]],
+        id: t.Optional[t.Union[str, t.Sequence[str]]] = None,
         error_trace: t.Optional[bool] = None,
         filter_path: t.Optional[t.Union[str, t.Sequence[str]]] = None,
         human: t.Optional[bool] = None,
@@ -75,8 +75,6 @@ async def get_pipeline(
 
         :param id: Comma-separated list of pipeline identifiers.
         """
-        if id in SKIP_IN_PATH:
-            raise ValueError("Empty value passed for parameter 'id'")
         if id not in SKIP_IN_PATH:
             __path = f"/_logstash/pipeline/{_quote(id)}"
         else:
diff --git a/elasticsearch/_sync/client/logstash.py b/elasticsearch/_sync/client/logstash.py
index f00591a5e..018376684 100644
--- a/elasticsearch/_sync/client/logstash.py
+++ b/elasticsearch/_sync/client/logstash.py
@@ -62,7 +62,7 @@ def delete_pipeline(
     def get_pipeline(
         self,
         *,
-        id: t.Union[str, t.Sequence[str]],
+        id: t.Optional[t.Union[str, t.Sequence[str]]] = None,
         error_trace: t.Optional[bool] = None,
         filter_path: t.Optional[t.Union[str, t.Sequence[str]]] = None,
         human: t.Optional[bool] = None,
@@ -75,8 +75,6 @@ def get_pipeline(
 
         :param id: Comma-separated list of pipeline identifiers.
         """
-        if id in SKIP_IN_PATH:
-            raise ValueError("Empty value passed for parameter 'id'")
         if id not in SKIP_IN_PATH:
             __path = f"/_logstash/pipeline/{_quote(id)}"
         else: