diff --git a/MP.INVE/Components/ProcSuggestion.razor.cs b/MP.INVE/Components/ProcSuggestion.razor.cs
index 7ea6cd30..ff56683b 100644
--- a/MP.INVE/Components/ProcSuggestion.razor.cs
+++ b/MP.INVE/Components/ProcSuggestion.razor.cs
@@ -68,6 +68,7 @@ namespace MP.INVE.Components
 
         protected override async Task OnParametersSetAsync()
         {
+            isKnown = false;
             // se il valore scansionato è != null...
             if (string.IsNullOrEmpty(lastScan))
             {