diff --git a/scripts/gen_json/gen_json.py b/scripts/gen_json/gen_json.py
index 8a0222cc8..5a46a7ed2 100644
--- a/scripts/gen_json/gen_json.py
+++ b/scripts/gen_json/gen_json.py
@@ -362,7 +362,7 @@ if __name__ == '__main__':
             "using this feature."
         ),
         action="store",
-        default=os.path.join(temp_directory, "lvgl.h")
+        default=os.path.join(temp_directory, "lvgl", "lvgl.h")
     )
     parser.add_argument(
         '--filter-private',