diff --git a/backend/open_webui/utils/tools.py b/backend/open_webui/utils/tools.py
index 3c3d973480..d3ab28b147 100644
--- a/backend/open_webui/utils/tools.py
+++ b/backend/open_webui/utils/tools.py
@@ -969,6 +969,8 @@ def add_terminal_display_file_inline_param(spec: dict) -> dict:
         'type': 'boolean',
         'description': 'Show the file inline in the chat message instead of opening the file viewer.',
     }
+    properties['page'] = {
+        'type': 'integer',
         'minimum': 1,
         'description': 'For PDF, DOCX, and PPTX files, open the preview at this 1-based page or slide number.',
     }