diff --git a/modules/ui_loadsave.py b/modules/ui_loadsave.py
index ef6b0154ea953344b89595782c9e2b4cf521709f..a96c71b29fb5bbbd6cc397a6d25b6061a035d0e3 100644
--- a/modules/ui_loadsave.py
+++ b/modules/ui_loadsave.py
@@ -51,7 +51,10 @@ class UiLoadsave:
                 if isinstance(x, gr.Textbox) and field == 'value':  # due to an undersirable behavior of gr.Textbox, if you give it an int value instead of str, everything dies
                     saved_value = str(saved_value)
                 elif isinstance(x, gr.Number) and field == 'value':
-                    saved_value = float(saved_value)
+                    try:
+                        saved_value = float(saved_value)
+                    except ValueError:
+                        saved_value = -1
 
                 setattr(obj, field, saved_value)
                 if init_field is not None: