diff --git a/docs/en/query_language/functions/string_search_functions.md b/docs/en/query_language/functions/string_search_functions.md
index a3914bfc4a8e4505ba7292347271c80c802d31ec..d5942bdc94f872f528135ab11bd723ec869ceea8 100644
--- a/docs/en/query_language/functions/string_search_functions.md
+++ b/docs/en/query_language/functions/string_search_functions.md
@@ -1,6 +1,6 @@
 # Functions for Searching Strings
 
-The search is case-sensitive in all these functions.
+The search is case-sensitive by default in all these functions. There are separate variants for case insensitive search.
 The search substring or regular expression must be a constant in all these functions.
 
 ## position(haystack, needle), locate(haystack, needle)