diff --git a/src/Squidex.Domain.Apps.Read/State/Grains/AppStateGrainState_Schemas.cs b/src/Squidex.Domain.Apps.Read/State/Grains/AppStateGrainState_Schemas.cs
index 494307a9b..37d067fc2 100644
--- a/src/Squidex.Domain.Apps.Read/State/Grains/AppStateGrainState_Schemas.cs
+++ b/src/Squidex.Domain.Apps.Read/State/Grains/AppStateGrainState_Schemas.cs
@@ -137,6 +137,11 @@ namespace Squidex.Domain.Apps.Read.State.Grains
             });
         }
 
+        public void On(SchemaDeleted @event, EnvelopeHeaders headers)
+        {
+            Schemas.Remove(@event.SchemaId.Id);
+        }
+
         public void On(WebhookAdded @event, EnvelopeHeaders headers)
         {
             UpdateSchema(@event, headers);
diff --git a/src/Squidex/app/shared/services/schemas.service.ts b/src/Squidex/app/shared/services/schemas.service.ts
index 730dccd5f..7852b6e8b 100644
--- a/src/Squidex/app/shared/services/schemas.service.ts
+++ b/src/Squidex/app/shared/services/schemas.service.ts
@@ -426,7 +426,7 @@ export class NumberFieldPropertiesDto extends FieldPropertiesDto {
         }
 
         if (this.allowedValues && this.allowedValues.length > 0) {
-            validators.push(ValidatorsEx.validValues(this.allowedValues));
+            validators.push(ValidatorsEx.validValues(this.allowedValues.map(String)));
         }
 
         return validators;