diff --git a/imag-bookmark/src/ui.rs b/imag-bookmark/src/ui.rs
index 701cdbba..6c49ba72 100644
--- a/imag-bookmark/src/ui.rs
+++ b/imag-bookmark/src/ui.rs
@@ -1,6 +1,7 @@
 use clap::{Arg, App, SubCommand};
 
 use libimagentrytag::ui::tag_add_arg;
+use libimagutil::cli_validators::*;
 
 pub fn build_ui<'a>(app: App<'a, 'a>) -> App<'a, 'a> {
     app
@@ -22,6 +23,7 @@ pub fn build_ui<'a>(app: App<'a, 'a>) -> App<'a, 'a> {
                         .required(true)
                         .multiple(true)
                         .value_name("URL")
+                        .validator(is_url)
                         .help("Add this URL, multiple possible"))
                    .arg(tag_add_arg())
                    )
@@ -44,6 +46,7 @@ pub fn build_ui<'a>(app: App<'a, 'a>) -> App<'a, 'a> {
                         .required(true)
                         .multiple(true)
                         .value_name("URL")
+                        .validator(is_url)
                         .help("Remove these urls, regex supported"))
                    )