diff --git a/client/src/app/shared/form-validators/custom-config-validators.ts b/client/src/app/shared/form-validators/custom-config-validators.ts
index ba8512e95..ff0813f7d 100644
--- a/client/src/app/shared/form-validators/custom-config-validators.ts
+++ b/client/src/app/shared/form-validators/custom-config-validators.ts
@@ -9,9 +9,9 @@ export const INSTANCE_NAME_VALIDATOR: BuildFormValidator = {
 }
 
 export const INSTANCE_SHORT_DESCRIPTION_VALIDATOR: BuildFormValidator = {
-  VALIDATORS: [ Validators.max(250) ],
+  VALIDATORS: [ Validators.maxLength(250) ],
   MESSAGES: {
-    max: $localize`Short description should not be longer than 250 characters.`
+    maxlength: $localize`Short description should not be longer than 250 characters.`
   }
 }