diff --git a/libraries/AP_HAL_SITL/HAL_SITL_Class.cpp b/libraries/AP_HAL_SITL/HAL_SITL_Class.cpp
index be9a70619b..e4c0ac40d7 100644
--- a/libraries/AP_HAL_SITL/HAL_SITL_Class.cpp
+++ b/libraries/AP_HAL_SITL/HAL_SITL_Class.cpp
@@ -86,7 +86,7 @@ void HAL_SITL::run(int argc, char * const argv[], Callbacks* callbacks) const
 
     for (;;) {
         callbacks->loop();
-        sitlScheduler._run_io_procs(false);
+        HALSITL::Scheduler::_run_io_procs(false);
     }
 }