diff --git a/src/source/view/controls/Button.bs b/src/source/view/controls/Button.bs
index eb6197fa..5b449b86 100644
--- a/src/source/view/controls/Button.bs
+++ b/src/source/view/controls/Button.bs
@@ -238,7 +238,7 @@ namespace mv.controls
         else if iconPosition = "left"
           labelSize[0] = mc.clamp(w - (labelTranslation[0] * 2) - iconSize[0], 0, w)
           subTextLabelSize[0] = mc.clamp(w - (subTextLabelTranslation[0] * 2), 0, w)
-          subTextLabelSize[0] = [iconTranslation[0] + iconSize[0], subTextLabelSize[1]]
+          subTextLabelSize = [iconTranslation[0] + iconSize[0], subTextLabelSize[1]]
           labelTranslation = [iconTranslation[0] + labelTranslation[0] + iconSize[0], labelTranslation[1]]
 
         else if iconPosition = "right"