diff --git a/common/rfb/Security.cxx b/common/rfb/Security.cxx
index daf3ac5..fac2d4b 100644
--- a/common/rfb/Security.cxx
+++ b/common/rfb/Security.cxx
@@ -39,7 +39,7 @@
 StringParameter Security::secTypes
 ("SecurityTypes",
  "Specify which security scheme to use (None, VncAuth)",
- "VncAuth");
+ "VncAuth", ConfServer);
 
 Security::Security(void) : upg(NULL)
 {