diff --git a/src/Aspire.Dashboard/Components/Dialogs/FilterDialog.razor b/src/Aspire.Dashboard/Components/Dialogs/FilterDialog.razor
index cd3d8e0213..c60869bf41 100644
--- a/src/Aspire.Dashboard/Components/Dialogs/FilterDialog.razor
+++ b/src/Aspire.Dashboard/Components/Dialogs/FilterDialog.razor
@@ -13,6 +13,7 @@
         <FluentSelect TOption="SelectViewModel<FilterCondition>" Items="@s_filterConditions" @bind-SelectedOption="@_formModel.Condition" OptionText="@(i => i.Name)" Width="100%" />
 
         <FluentTextField @bind-Value="_formModel.Value" Placeholder="Value" />
+        <ValidationMessage For="() => _formModel.Value" />
 
         <FluentStack Orientation="Orientation.Horizontal" HorizontalAlignment="HorizontalAlignment.Right">
             <FluentButton OnClick="Cancel">Cancel</FluentButton>
diff --git a/src/Aspire.Dashboard/wwwroot/css/app.css b/src/Aspire.Dashboard/wwwroot/css/app.css
index 8b5c30025d..e99b8869d8 100644
--- a/src/Aspire.Dashboard/wwwroot/css/app.css
+++ b/src/Aspire.Dashboard/wwwroot/css/app.css
@@ -146,3 +146,7 @@ fluent-data-grid-cell .long-inner-content {
 .subtext {
     color: var(--foreground-subtext-rest);
 }
+
+.validation-message {
+    color: var(--error);
+}