diff --git a/docs/src/visual-customization.md b/docs/src/visual-customization.md
index 197c9b80f8..8b307d97d5 100644
--- a/docs/src/visual-customization.md
+++ b/docs/src/visual-customization.md
@@ -267,7 +267,7 @@ TBD: Centered layout related settings
     "display_in": "active_editor",  // Where to show (active_editor, all_editor)
     "thumb": "always",              // When to show thumb (always, hover)
     "thumb_border": "left_open",    // Thumb border (left_open, right_open, full, none)
-    "max_width_columns": 80         // Maximum width of minimap
+    "max_width_columns": 80,        // Maximum width of minimap
     "current_line_highlight": null  // Highlight current line (null, line, gutter)
   },