diff --git a/docs/en/sql-reference/aggregate-functions/reference/welchttest.md b/docs/en/sql-reference/aggregate-functions/reference/welchttest.md
index 282d5c04d60..2e127f87f9f 100644
--- a/docs/en/sql-reference/aggregate-functions/reference/welchttest.md
+++ b/docs/en/sql-reference/aggregate-functions/reference/welchttest.md
@@ -27,7 +27,7 @@ The null hypothesis is that means of populations are equal. Normal distribution
 
 **Returned values**
 
-[Tuple](../../../sql-reference/data-types/tuple.md) with two two or four elements (if the optional `confidence_level` is specified)
+[Tuple](../../../sql-reference/data-types/tuple.md) with two or four elements (if the optional `confidence_level` is specified)
 
 -   calculated t-statistic. [Float64](../../../sql-reference/data-types/float.md).
 -   calculated p-value. [Float64](../../../sql-reference/data-types/float.md).