diff --git a/src/Commands/core/XhprofCommands.php b/src/Commands/core/XhprofCommands.php
index 6827fd8695..47df228f68 100644
--- a/src/Commands/core/XhprofCommands.php
+++ b/src/Commands/core/XhprofCommands.php
@@ -54,7 +54,7 @@ function xhprofPost($result, CommandData $commandData) {
    */
   function xhprofInitialize(InputInterface $input, AnnotationData $annotationData) {
     if (self::xhprofIsEnabled($input)) {
-      xhprof_enable(xh_flags($input->getOptions()));
+      xhprof_enable(self::xhprofFlags($input->getOptions()));
     }
   }