diff --git a/docs/en/sql-reference/functions/tuple-functions.md b/docs/en/sql-reference/functions/tuple-functions.md
index 8502fcdcf66..96bceb8958c 100644
--- a/docs/en/sql-reference/functions/tuple-functions.md
+++ b/docs/en/sql-reference/functions/tuple-functions.md
@@ -22,7 +22,7 @@ tuple(x, y, …)
 ## tupleElement {#tupleelement}
 
 A function that allows getting a column from a tuple.
-‘N’ is the column index, starting from 1. N must be a constant. ‘N’ must be a constant. ‘N’ must be a strict postive integer no greater than the size of the tuple.
+‘N’ is the column index, starting from 1. ‘N’ must be a constant. ‘N’ must be a strict postive integer no greater than the size of the tuple.
 There is no cost to execute the function.
 
 The function implements the operator `x.N`.