diff --git a/README.md b/README.md
index b96303c..d323aec 100644
--- a/README.md
+++ b/README.md
@@ -103,6 +103,7 @@ sesh includes built-in keybindings for switching between panes:
 |-----|--------|
 | `Alt+1` | Focus the AI pane (left) |
 | `Alt+2` | Focus lazygit (right) |
+| `Ctrl+f` | Toggle focused pane fullscreen (collapse/expand lazygit) |
 | `Ctrl+q` | Detach from the session (keeps it running) |
 
 These are embedded in the session layout and won't interfere with your global Zellij config. Use `Ctrl+q` to close the window — your session stays alive in the background and you can reattach later.
diff --git a/functions/sesh.fish b/functions/sesh.fish
index 2e7b454..69aedd3 100644
--- a/functions/sesh.fish
+++ b/functions/sesh.fish
@@ -109,6 +109,7 @@ keybinds {
     shared {
         bind \"Alt 1\" { MoveFocus \"left\"; }
         bind \"Alt 2\" { MoveFocus \"right\"; }
+        bind \"Ctrl f\" { ToggleFocusFullscreen; }
         bind \"Ctrl q\" { Detach; }
     }
 }
diff --git a/sesh.sh b/sesh.sh
index cd90dd2..b1f6b38 100644
--- a/sesh.sh
+++ b/sesh.sh
@@ -114,6 +114,7 @@ keybinds {
     shared {
         bind "Alt 1" { MoveFocus "left"; }
         bind "Alt 2" { MoveFocus "right"; }
+        bind "Ctrl f" { ToggleFocusFullscreen; }
         bind "Ctrl q" { Detach; }
     }
 }