diff --git a/messageDir/en.lua b/messageDir/en.lua
index f3ad3d50b..5d8ca5115 100644
--- a/messageDir/en.lua
+++ b/messageDir/en.lua
@@ -120,7 +120,7 @@ The syntax is:
 
 Please check the spelling or version number. Also try "module spider ..."
 It is also possible your cache file is out-of-date; it may help to try:
-  $   module --ignore-cache load %{module_list}
+  $   module --ignore_cache load %{module_list}
 
 Also make sure that all modulefiles written in TCL start with the string #%Module
 ]==],