diff --git a/plugin/multisocket/README.md b/plugin/multisocket/README.md
index 6fb020249..885c4459f 100644
--- a/plugin/multisocket/README.md
+++ b/plugin/multisocket/README.md
@@ -62,6 +62,10 @@ If conducting such tests is difficult, follow these recommendations:
 
 ## Limitations
 
+The `multisocket` value used for a given listen address is taken from the first server block that binds to that address
+in the Corefile. Subsequent server blocks using the same address will not change it. Different addresses may use
+different values.
+
 The SO_REUSEPORT socket option is not available for some operating systems. It is available since Linux Kernel 3.9 and 
 not available for Windows at all.