1 files changed, 2 insertions, 0 deletions
diff --git a/bin/wb-icon b/bin/wb-icon
index b8f91cc..9e011b9 100755
--- a/bin/wb-icon
+++ b/bin/wb-icon
@@ -119,10 +119,12 @@ def selftest():
         "x-office-presentation",            # on
         "dialog-warning",                   # no state file
     ]
+    mail_icons = ["mail-unread"]
 
     names = sorted(
         {n for group in ICONS.values() for n in group.values()}
         | set(workspace_icons) | set(clock_icons) | set(presentation_icons)
+        | set(mail_icons)
     )
     missing = [n for n in names if not lookup(n)]
     for n in names: