diff --git a/configure.in b/configure.in
index 4fe33f32071d..55ce219f03bd 100644
--- a/configure.in
+++ b/configure.in
@@ -1705,6 +1705,7 @@ else
   AC_DEFINE(X_PLUGINS)
   AC_DEFINE(UNIX_LDAP)
   AC_DEFINE(UNIX_ASYNC_DNS)
+  AC_DEFINE(NEW_CLIPBOARD_SUPPORT)
 fi
 
 AC_DEFINE(JS_THREADSAFE)