diff --git a/gtk/inspector/css-node-tree.ui b/gtk/inspector/css-node-tree.ui
index 0b2491063a..9df312e587 100644
--- a/gtk/inspector/css-node-tree.ui
+++ b/gtk/inspector/css-node-tree.ui
@@ -80,6 +80,7 @@
1
0
0
+ vertical
diff --git a/gtk/inspector/object-hierarchy.ui b/gtk/inspector/object-hierarchy.ui
index 5240d7b1e2..12c6352c52 100644
--- a/gtk/inspector/object-hierarchy.ui
+++ b/gtk/inspector/object-hierarchy.ui
@@ -27,6 +27,9 @@
True
model
False
+ 1
+ 0
+ 18