diff --git a/docs/changelog.rst b/docs/changelog.rst
index b97f61bda..b7e3a0c26 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -46,6 +46,8 @@ To update |kitty|, :doc:`follow the instructions <binary>`.
 
 - Fix a regression that broke :opt:`kitten_alias` (:iss:`2952`)
 
+- Fix a regression that broke the ``move_window_to_top`` action (:pull:`2953`)
+
 
 0.18.3 [2020-08-11]
 -------------------
diff --git a/kitty/tabs.py b/kitty/tabs.py
index b8424fc41..f3d1eb9b1 100644
--- a/kitty/tabs.py
+++ b/kitty/tabs.py
@@ -439,9 +439,9 @@ class Tab:  # {{{
                     self.relayout()
 
     def move_window_to_top(self) -> None:
-        n = self.windows.num_groups
-        if n > 1:
-            self.move_window(1 - n)
+        n = self.windows.active_group_idx
+        if n > 0:
+            self.move_window(-n)
 
     def move_window_forward(self) -> None:
         self.move_window()