diff --git a/docs/reference/sql/language/index.asciidoc b/docs/reference/sql/language/index.asciidoc
index f63afd6ebd8d6..0ce39c767dac5 100644
--- a/docs/reference/sql/language/index.asciidoc
+++ b/docs/reference/sql/language/index.asciidoc
@@ -7,7 +7,7 @@ This chapter describes the SQL semantics supported in X-Pack namely:
 
 <<sql-data-types>>:: Data types
 <<sql-commands>>:: Commands
-<<sql-index-patterns>>:: Index patterns
+<<sql-index-pattern>>:: Index patterns
 
 include::data-types.asciidoc[]
 include::syntax/index.asciidoc[]