diff --git a/docs/content.zh/docs/dev/table/common.md b/docs/content.zh/docs/dev/table/common.md
index 67326043f16de..912dbedc0b8db 100644
--- a/docs/content.zh/docs/dev/table/common.md
+++ b/docs/content.zh/docs/dev/table/common.md
@@ -508,7 +508,7 @@ Table orders = tableEnv.from("Orders");
 // compute revenue for all customers from France
 Table revenue = orders
   .filter($("cCountry").isEqual("FRANCE"))
-  .groupBy($("cID"), $("cName")
+  .groupBy($("cID"), $("cName"))
   .select($("cID"), $("cName"), $("revenue").sum().as("revSum"));
 
 // emit or convert Table
diff --git a/docs/content/docs/dev/table/common.md b/docs/content/docs/dev/table/common.md
index 37a5b377b1a54..f2751f8f8c397 100644
--- a/docs/content/docs/dev/table/common.md
+++ b/docs/content/docs/dev/table/common.md
@@ -402,7 +402,7 @@ Table orders = tableEnv.from("Orders");
 // compute revenue for all customers from France
 Table revenue = orders
   .filter($("cCountry").isEqual("FRANCE"))
-  .groupBy($("cID"), $("cName")
+  .groupBy($("cID"), $("cName"))
   .select($("cID"), $("cName"), $("revenue").sum().as("revSum"));
 
 // emit or convert Table