diff --git a/frontend/ui/widget/textwidget.lua b/frontend/ui/widget/textwidget.lua
index 5358a6cf5..f27a3c128 100644
--- a/frontend/ui/widget/textwidget.lua
+++ b/frontend/ui/widget/textwidget.lua
@@ -178,8 +178,8 @@ function TextWidget:updateSize()
 end
 dbg:guard(TextWidget, "updateSize",
     function(self)
-        assert(type(self.text) == "string",
-            "Wrong text type (expected string)")
+        assert(type(self.text) == "string" or type(self.text) == "number",
+            "Wrong self.text type (expected string or number)")
     end)
 
 function TextWidget:_measureWithXText()
@@ -324,8 +324,8 @@ function TextWidget:setText(text)
 end
 dbg:guard(TextWidget, "setText",
     function(self, text)
-        assert(type(text) == "string",
-            "Wrong text type (expected string)")
+        assert(type(text) == "string" or type(text) == "number",
+            "Wrong text type (expected string or number)")
     end)
 
 function TextWidget:setMaxWidth(max_width)