diff --git a/lib/x11/corereqs.js b/lib/x11/corereqs.js
index 6fcab01..f71aca7 100644
--- a/lib/x11/corereqs.js
+++ b/lib/x11/corereqs.js
@@ -244,6 +244,12 @@ module.exports = {
         }
    ],
    
+   RaiseWindow: [
+        function(win) {
+            return ['CxSLSxxCxxx', [12, 4, win, 64]];
+        }
+   ],
+   
 
    QueryTree: [
         ['CxSL', [15, 2]],