diff --git a/examples/application10/window.ui b/examples/application10/window.ui
index d5512fd1e4..270e129418 100644
--- a/examples/application10/window.ui
+++ b/examples/application10/window.ui
@@ -29,7 +29,6 @@
             <child type="title">
               <object class="GtkStackSwitcher" id="tabs">
                 <property name="visible">True</property>
-                <property name="margin">6</property>
                 <property name="stack">stack</property>
               </object>
             </child>
diff --git a/examples/application2/window.ui b/examples/application2/window.ui
index 6b37e86e4d..d90c3f618c 100644
--- a/examples/application2/window.ui
+++ b/examples/application2/window.ui
@@ -15,7 +15,6 @@
             <child type="title">
               <object class="GtkStackSwitcher" id="tabs">
                 <property name="visible">True</property>
-                <property name="margin">6</property>
                 <property name="stack">stack</property>
               </object>
             </child>
diff --git a/examples/application3/window.ui b/examples/application3/window.ui
index 6b37e86e4d..d90c3f618c 100644
--- a/examples/application3/window.ui
+++ b/examples/application3/window.ui
@@ -15,7 +15,6 @@
             <child type="title">
               <object class="GtkStackSwitcher" id="tabs">
                 <property name="visible">True</property>
-                <property name="margin">6</property>
                 <property name="stack">stack</property>
               </object>
             </child>
diff --git a/examples/application4/window.ui b/examples/application4/window.ui
index 6b37e86e4d..d90c3f618c 100644
--- a/examples/application4/window.ui
+++ b/examples/application4/window.ui
@@ -15,7 +15,6 @@
             <child type="title">
               <object class="GtkStackSwitcher" id="tabs">
                 <property name="visible">True</property>
-                <property name="margin">6</property>
                 <property name="stack">stack</property>
               </object>
             </child>
diff --git a/examples/application5/window.ui b/examples/application5/window.ui
index 6b37e86e4d..d90c3f618c 100644
--- a/examples/application5/window.ui
+++ b/examples/application5/window.ui
@@ -15,7 +15,6 @@
             <child type="title">
               <object class="GtkStackSwitcher" id="tabs">
                 <property name="visible">True</property>
-                <property name="margin">6</property>
                 <property name="stack">stack</property>
               </object>
             </child>
diff --git a/examples/application6/window.ui b/examples/application6/window.ui
index 6b37e86e4d..d90c3f618c 100644
--- a/examples/application6/window.ui
+++ b/examples/application6/window.ui
@@ -15,7 +15,6 @@
             <child type="title">
               <object class="GtkStackSwitcher" id="tabs">
                 <property name="visible">True</property>
-                <property name="margin">6</property>
                 <property name="stack">stack</property>
               </object>
             </child>
diff --git a/examples/application7/window.ui b/examples/application7/window.ui
index 589acd52ce..8f96f89e50 100644
--- a/examples/application7/window.ui
+++ b/examples/application7/window.ui
@@ -15,7 +15,6 @@
             <child type="title">
               <object class="GtkStackSwitcher" id="tabs">
                 <property name="visible">True</property>
-                <property name="margin">6</property>
                 <property name="stack">stack</property>
               </object>
             </child>
diff --git a/examples/application8/window.ui b/examples/application8/window.ui
index ab39883a41..d2a085aafd 100644
--- a/examples/application8/window.ui
+++ b/examples/application8/window.ui
@@ -15,7 +15,6 @@
             <child type="title">
               <object class="GtkStackSwitcher" id="tabs">
                 <property name="visible">True</property>
-                <property name="margin">6</property>
                 <property name="stack">stack</property>
               </object>
             </child>
diff --git a/examples/application9/window.ui b/examples/application9/window.ui
index b5f40fbb14..f58d10caac 100644
--- a/examples/application9/window.ui
+++ b/examples/application9/window.ui
@@ -32,7 +32,6 @@
             <child type="title">
               <object class="GtkStackSwitcher" id="tabs">
                 <property name="visible">True</property>
-                <property name="margin">6</property>
                 <property name="stack">stack</property>
               </object>
             </child>