diff --git a/cmd/admin-handlers-config-kv.go b/cmd/admin-handlers-config-kv.go
index c955cc067..d4c34678a 100644
--- a/cmd/admin-handlers-config-kv.go
+++ b/cmd/admin-handlers-config-kv.go
@@ -74,6 +74,10 @@ func (a adminAPIHandlers) DelConfigKVHandler(w http.ResponseWriter, r *http.Requ
 		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
 		return
 	}
+	if err = validateConfig(cfg); err != nil {
+		writeCustomErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminConfigBadJSON), err.Error(), r.URL)
+		return
+	}
 
 	if err = saveServerConfig(ctx, objectAPI, cfg); err != nil {
 		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
diff --git a/internal/config/notify/parse.go b/internal/config/notify/parse.go
index e23cf4aaf..556ec78de 100644
--- a/internal/config/notify/parse.go
+++ b/internal/config/notify/parse.go
@@ -82,7 +82,7 @@ func RegisterNotificationTargets(ctx context.Context, cfg config.Config, transpo
 		for _, targetID := range targetIDs {
 			if !targetList.Exists(targetID) {
 				return nil, config.Errorf(
-					"Unable to disable configured targets '%v'",
+					"Unable to disable currently configured targets '%v'",
 					targetID)
 			}
 		}