diff --git a/demos/react/README.md b/demos/react/README.md
index 05b548b..b44b12f 100644
--- a/demos/react/README.md
+++ b/demos/react/README.md
@@ -33,7 +33,7 @@ state in this demo is shaped like the following object:
   cols: [{ name: "A", key: 0 }, { name: "B", key: 1 }, { name: "C", key: 2 }],
   data: [
     [ "id",    "name", "value" ],
-    [    1, "sheetjs",    7262 ]
+    [    1, "sheetjs",    7262 ],
     [    2, "js-xlsx",    6969 ]
   ]
 }
diff --git a/demos/vue/README.md b/demos/vue/README.md
index 4fce8fe..d9ab680 100644
--- a/demos/vue/README.md
+++ b/demos/vue/README.md
@@ -33,7 +33,7 @@ state in this demo is shaped like the following object:
   cols: [{ name: "A", key: 0 }, { name: "B", key: 1 }, { name: "C", key: 2 }],
   data: [
     [ "id",    "name", "value" ],
-    [    1, "sheetjs",    7262 ]
+    [    1, "sheetjs",    7262 ],
     [    2, "js-xlsx",    6969 ]
   ]
 }