diff --git a/terminatorlib/container.py b/terminatorlib/container.py
index e6b8085f..7bfe63f2 100755
--- a/terminatorlib/container.py
+++ b/terminatorlib/container.py
@@ -71,7 +71,7 @@ class Container(object):
         """Split this container vertically"""
         return(self.split_axis(widget, False))
 
-    def split_axis(self, widget, vertical=True, sibling=None):
+    def split_axis(self, widget, vertical=True, sibling=None, siblinglast=None):
         """Default axis splitter. This should be implemented by subclasses"""
         raise NotImplementedError('split_axis')
 
diff --git a/terminatorlib/notebook.py b/terminatorlib/notebook.py
index 9fc2c2eb..769c9666 100755
--- a/terminatorlib/notebook.py
+++ b/terminatorlib/notebook.py
@@ -52,8 +52,9 @@ class Notebook(Container, gtk.Notebook):
         self.set_tab_pos(pos)
         self.set_show_tabs(not self.config['hide_tabbar'])
 
-    def split_axis(self, widget, vertical=True, sibling=None):
+    def split_axis(self, widget, vertical=True, sibling=None, siblinglast=False):
         """Split the axis of a terminal inside us"""
+        order = None
         page_num = self.page_num(widget)
         if page_num == -1:
             err('Notebook::split_axis: %s not found in Notebook' % widget)
@@ -76,8 +77,12 @@ class Notebook(Container, gtk.Notebook):
         self.set_tab_label(container, label)
         self.show_all()
 
-        container.add(widget)
-        container.add(sibling)
+        order = [widget, sibling]
+        if siblinglast is True:
+            order.reverse
+
+        for terminal in order:
+            container.add(terminal)
         self.set_current_page(page_num)
 
         self.show_all()
diff --git a/terminatorlib/paned.py b/terminatorlib/paned.py
index e75aef93..19d0f099 100755
--- a/terminatorlib/paned.py
+++ b/terminatorlib/paned.py
@@ -43,8 +43,7 @@ class Paned(Container):
     def split_axis(self, widget, vertical=True, sibling=None,
             siblinglast=False):
         """Default axis splitter. This should be implemented by subclasses"""
-        first = None
-        second = None
+        order = None
 
         maker = Factory()
 
@@ -61,15 +60,12 @@ class Paned(Container):
         self.add(container)
         self.show_all()
 
+        order = [widget, sibling]
         if siblinglast is True:
-            first = widget
-            second = sibling
-        else:
-            first = sibling
-            second = widget
+            order.reverse()
 
-        container.add(first)
-        container.add(second)
+        for terminal in order:
+            container.add(terminal)
 
         self.show_all()
 
diff --git a/terminatorlib/window.py b/terminatorlib/window.py
index 7c2b72d8..1cd8c98a 100755
--- a/terminatorlib/window.py
+++ b/terminatorlib/window.py
@@ -288,8 +288,9 @@ class Window(Container, gtk.Window):
         if len(self.get_children()) == 0:
             self.emit('destroy')
 
-    def split_axis(self, widget, vertical=True, sibling=None):
+    def split_axis(self, widget, vertical=True, sibling=None, siblinglast=False):
         """Split the window"""
+        order = None
         maker = Factory()
         self.remove(widget)
 
@@ -304,7 +305,11 @@ class Window(Container, gtk.Window):
         self.add(container)
         container.show_all()
 
-        for term in [widget, sibling]:
+        order = [widget, sibling]
+        if siblinglast is True:
+            order.reverse()
+
+        for term in order:
             container.add(term)
         container.show_all()