diff --git a/litellm/llms/gemini/image_edit/transformation.py b/litellm/llms/gemini/image_edit/transformation.py
index 16541138217..c3ea63ad43b 100644
--- a/litellm/llms/gemini/image_edit/transformation.py
+++ b/litellm/llms/gemini/image_edit/transformation.py
@@ -106,7 +106,10 @@ def transform_image_edit_request(  # type: ignore[override]
         generation_config: Dict[str, Any] = {}
 
         if "aspectRatio" in image_edit_optional_request_params:
-            generation_config["aspectRatio"] = image_edit_optional_request_params[
+            # Move aspectRatio into imageConfig inside generationConfig
+            if "imageConfig" not in generation_config:
+                generation_config["imageConfig"] = {}
+            generation_config["imageConfig"]["aspectRatio"] = image_edit_optional_request_params[
                 "aspectRatio"
             ]
 
diff --git a/tests/test_litellm/llms/gemini/image_edit/test_gemini_image_edit_transformation.py b/tests/test_litellm/llms/gemini/image_edit/test_gemini_image_edit_transformation.py
index 021cfaeff5e..9cd746cfde4 100644
--- a/tests/test_litellm/llms/gemini/image_edit/test_gemini_image_edit_transformation.py
+++ b/tests/test_litellm/llms/gemini/image_edit/test_gemini_image_edit_transformation.py
@@ -61,7 +61,7 @@ def test_transform_image_edit_request(self) -> None:
         assert base64.b64decode(inline_data["data"]) == image_bytes
 
         generation_config = request_body["generationConfig"]
-        assert generation_config["aspectRatio"] == "16:9"
+        assert generation_config["imageConfig"]["aspectRatio"] == "16:9"
 
     def test_transform_image_edit_request_multiple_images(self) -> None:
         image_one = BytesIO(b"image_one")