diff --git a/src/GUI/QQuickDrawable.cxx b/src/GUI/QQuickDrawable.cxx
index e5f96cee7..436a875ea 100755
--- a/src/GUI/QQuickDrawable.cxx
+++ b/src/GUI/QQuickDrawable.cxx
@@ -19,6 +19,7 @@
 #include "config.h"
 
 #include <simgear/compiler.h>
+#include <atomic>
 
 #include "QQuickDrawable.hxx"