diff --git a/vncviewer/parameters.cxx b/vncviewer/parameters.cxx
index 9a9b9fd..1151a7c 100644
--- a/vncviewer/parameters.cxx
+++ b/vncviewer/parameters.cxx
@@ -120,6 +120,9 @@
 BoolParameter acceptClipboard("AcceptClipboard",
                               "Accept clipboard changes from the server",
                               true);
+BoolParameter setPrimary("SetPrimary",
+                         "Set the primary selection as well as the "
+                         "clipboard selection", true);
 BoolParameter sendClipboard("SendClipboard",
                             "Send clipboard changes to the server", true);
 #if !defined(WIN32) && !defined(__APPLE__)