diff --git a/data/core/rootview.lua b/data/core/rootview.lua
index f797c63..9c102d2 100644
--- a/data/core/rootview.lua
+++ b/data/core/rootview.lua
@@ -584,8 +584,10 @@ function RootView:on_mouse_moved(x, y, dx, dy)
   if self.dragged_divider then
     local node = self.dragged_divider
     if node.type == "hsplit" then
+      x = common.clamp(x, 0, self.root_node.size.x * 0.95)
       resize_child_node(node, "x", x, dx)
     elseif node.type == "vsplit" then
+      y = common.clamp(x, 0, self.root_node.size.y * 0.95)
       resize_child_node(node, "y", y, dy)
     end
     node.divider = common.clamp(node.divider, 0.01, 0.99)