diff --git a/src/config.rs b/src/config.rs
index 2e70ed0..06a5b9a 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -218,7 +218,7 @@ impl Default for Format {
             window_format: Some(
                 "img:{app_icon}:text:{indent}<i>{app_name}</i> — \
                  {urgency_start}<b>“{title}”</b>{urgency_end} \
-                 on workspace {workspace_name} {marks}    \
+                 on workspace {workspace_name} <i>{marks}</i>    \
                  <span alpha=\"20000\">({id})</span>"
                     .to_string(),
             ),
@@ -229,7 +229,7 @@ impl Default for Format {
             ),
             container_format: Some(
                 "{indent}<b>Container {layout}</b> \
-                 on workspace {workspace_name}    \
+                 on workspace {workspace_name} <i>{marks}</i>    \
                  <span alpha=\"20000\">({id})</span>"
                     .to_string(),
             ),
diff --git a/src/tree.rs b/src/tree.rs
index 2e14023..42eb9b4 100644
--- a/src/tree.rs
+++ b/src/tree.rs
@@ -411,6 +411,13 @@ impl DisplayFormat for DisplayNode<'_> {
                 .replace("{indent}", &indent.repeat(self.get_indent_level()))
                 .replace("{layout}", format!("{:?}", self.node.layout).as_str())
                 .replace("{id}", format!("{}", self.node.id).as_str())
+                .replace(
+                    "{marks}",
+                    &maybe_html_escape(
+                        html_escape,
+                        &self.node.marks.join(", "),
+                    ),
+                )
                 .replace(
                     "{workspace_name}",
                     &maybe_html_escape(