diff --git a/corfu.el b/corfu.el
index a65994c..7718f8d 100644
--- a/corfu.el
+++ b/corfu.el
@@ -86,11 +86,11 @@ completion began less than that number of seconds ago."
   "List of modes excluded by `corfu-global-mode'."
   :type '(repeat symbol))
 
-(defcustom corfu-left-margin-width 0.6
+(defcustom corfu-left-margin-width 0.5
   "Width of the left margin in units of the character width."
   :type 'float)
 
-(defcustom corfu-right-margin-width 0.6
+(defcustom corfu-right-margin-width 0.5
   "Width of the right margin in units of the character width."
   :type 'float)