Index: calendar/gui/dialogs/comp-editor.c
===================================================================
--- calendar/gui/dialogs/comp-editor.c	(revision 33835)
+++ calendar/gui/dialogs/comp-editor.c	(working copy)
@@ -967,9 +967,10 @@
 	guint attachment_num = e_attachment_bar_get_num_attachments (
 		E_ATTACHMENT_BAR (editor->priv->attachment_bar));
 	if (attachment_num) {
+		const char *boldnr= "<b>%d</b>";
 		gchar *num_text = g_strdup_printf (
-			ngettext ("<b>%d</b> Attachment", "<b>%d</b> Attachments", attachment_num),
-			attachment_num);
+			ngettext ("%s Attachment", "%s Attachments", attachment_num),
+			boldnr);
 		gtk_label_set_markup (GTK_LABEL (editor->priv->attachment_expander_num),
 				      num_text);
 		g_free (num_text);
