diff --git a/doc/mdns.txt b/doc/mdns.txt
index c3228432..c743b828 100644
--- a/doc/mdns.txt
+++ b/doc/mdns.txt
@@ -32,9 +32,9 @@ generated.
 The MDNS code puts its structs on the stack where suitable to reduce dynamic
 memory allocation. It may use up to 1kB of stack.
 
-MDNS needs a strncasecmp() implementation. If you have one, define
-LWIP_MDNS_STRNCASECMP to it. Otherwise the code will provide an implementation
-for you.
+MDNS (like other apps) needs a strncasecmp()/strnicmp() implementation.
+If you have one, define 'lwip_strnicmp' to it. Otherwise the code will provide
+an implementation for you.
 
 
 How to use: