diff --git a/common/rfb/Security.cxx b/common/rfb/Security.cxx
index 62ea50e..e623ab5 100644
--- a/common/rfb/Security.cxx
+++ b/common/rfb/Security.cxx
@@ -49,6 +49,12 @@
 
 static LogWriter vlog("Security");
 
+#ifdef HAVE_GNUTLS
+StringParameter Security::GnuTLSPriority("GnuTLSPriority",
+  "GnuTLS priority string that controls the TLS session’s handshake algorithms",
+  "NORMAL");
+#endif
+
 Security::Security()
 {
 }