diff --git a/tools/cabana/videowidget.h b/tools/cabana/videowidget.h
index 7bd55cbce4..ac34c66007 100644
--- a/tools/cabana/videowidget.h
+++ b/tools/cabana/videowidget.h
@@ -2,6 +2,7 @@
 
 #include <map>
 #include <memory>
+#include <optional>
 #include <set>
 #include <utility>