diff --git a/widget/calendar.lua b/widget/calendar.lua
index 99e8817..d289ebb 100644
--- a/widget/calendar.lua
+++ b/widget/calendar.lua
@@ -38,8 +38,8 @@ function calendar.show(t_out, inc_offset, scr)
 
     if current_month then -- today highlighted
         calendar.offset = 0
-        calendar.icon = string.format("%s%s.png", calendar.icons, tonumber(os.date("%d")))
-        f = calendar.cal
+        calendar.icon   = calendar.icons:len() > 0 and string.format("%s%s.png", calendar.icons, tonumber(os.date("%d")))
+        f               = calendar.cal
     else -- no current month showing, no day to highlight
        local month = tonumber(os.date("%m"))
        local year  = tonumber(os.date("%Y"))
diff --git a/wiki b/wiki
index d25b127..6665752 160000
--- a/wiki
+++ b/wiki
@@ -1 +1 @@
-Subproject commit d25b127c9e534582a399a670b972afa1ff72af37
+Subproject commit 666575233da2ff2f7973320ec69ddf403454b400