diff --git a/effi-kreuzberg/TOOL-OPENWEBUI.md b/effi-kreuzberg/TOOL-OPENWEBUI.md
index d5fbcf7..f1decee 100644
--- a/effi-kreuzberg/TOOL-OPENWEBUI.md
+++ b/effi-kreuzberg/TOOL-OPENWEBUI.md
@@ -73,9 +73,11 @@ class Tools:
             mime_type = mime_type or 'application/octet-stream'
             
             with open(file_path, 'rb') as f:
-                files = {
-                    'files': (os.path.basename(file_path), f, mime_type)
-                }
+                file_content = f.read()
+            
+            files = {
+                'files': (os.path.basename(file_path), io.BytesIO(file_content), mime_type)
+            }
             
             data = {
                 'image_export_mode': 'inline',