diff --git a/include/ftxui/screen/box.hpp b/include/ftxui/screen/box.hpp
index 719e1bd5..e421d1d5 100644
--- a/include/ftxui/screen/box.hpp
+++ b/include/ftxui/screen/box.hpp
@@ -4,10 +4,10 @@
 namespace ftxui {
 
 struct Box {
-  int x_min;
-  int x_max;
-  int y_min;
-  int y_max;
+  int x_min = 0;
+  int x_max = 0;
+  int y_min = 0;
+  int y_max = 0;
 
   static Box Intersection(Box a, Box b);
   bool Contain(int x, int y);
diff --git a/src/ftxui/component/renderer.cpp b/src/ftxui/component/renderer.cpp
index 923a28ff..5c568f8f 100644
--- a/src/ftxui/component/renderer.cpp
+++ b/src/ftxui/component/renderer.cpp
@@ -75,7 +75,7 @@ Component Renderer(Component child, std::function<Element()> render) {
 ///   if (focused)
 ///     return text("My interface") | inverted;
 ///   else
-///     return text("My interface") | inverted;
+///     return text("My interface");
 /// });
 /// screen.Loop(renderer);
 /// ```