diff --git a/litellm/llms/vertex_ai/vector_stores/search_api/transformation.py b/litellm/llms/vertex_ai/vector_stores/search_api/transformation.py
index a6fbe33a866..6bb7885810a 100644
--- a/litellm/llms/vertex_ai/vector_stores/search_api/transformation.py
+++ b/litellm/llms/vertex_ai/vector_stores/search_api/transformation.py
@@ -152,7 +152,9 @@ class VertexSearchAPIVectorStoreConfig(BaseVectorStoreConfig, VertexBase):
         if isinstance(extra_body, dict):
             request_body.update(extra_body)
 
-        litellm_logging_obj.model_call_details["query"] = query
+        litellm_logging_obj.model_call_details["query"] = request_body.get(
+            "query", query
+        )
 
         return url, request_body
 
diff --git a/tests/test_litellm/llms/vertex_ai/test_vertex_ai_search_vector_store_transformation.py b/tests/test_litellm/llms/vertex_ai/test_vertex_ai_search_vector_store_transformation.py
index 83d9fd703d8..3e7a1c33d58 100644
--- a/tests/test_litellm/llms/vertex_ai/test_vertex_ai_search_vector_store_transformation.py
+++ b/tests/test_litellm/llms/vertex_ai/test_vertex_ai_search_vector_store_transformation.py
@@ -194,3 +194,16 @@ def test_search_request_joins_list_query():
     _, body = _search_request(query=["foo", "bar"])
 
     assert body["query"] == "foo bar"
+
+
+def test_search_request_logs_effective_query_when_extra_body_overrides_query():
+    log = SimpleNamespace(model_call_details={})
+
+    _, body = _search_request(
+        query="original",
+        extra_body={"query": "from-extra-body"},
+        litellm_logging_obj=log,
+    )
+
+    assert body["query"] == "from-extra-body"
+    assert log.model_call_details["query"] == "from-extra-body"