diff --git a/scene/gui/box_container.cpp b/scene/gui/box_container.cpp
index 97cdaf8a8f..37db03a62d 100644
--- a/scene/gui/box_container.cpp
+++ b/scene/gui/box_container.cpp
@@ -301,7 +301,7 @@ Size2 BoxContainer::_get_minimum_size(bool p_use_desired_sizes) const {
 			continue;
 		}
 
-		Size2i size = p_use_desired_sizes ? c->get_bound_desired_size() : c->get_bound_minimum_size();
+		Size2i size = p_use_desired_sizes ? c->get_bound_desired_size().ceil() : c->get_bound_minimum_size().ceil();
 
 		if (vertical) { /* VERTICAL */