diff --git a/config/tmux/tmux.conf b/config/tmux/tmux.conf
index a22db3a4..2414ebf3 100644
--- a/config/tmux/tmux.conf
+++ b/config/tmux/tmux.conf
@@ -13,10 +13,8 @@ bind -T copy-mode-vi v send -X begin-selection
 bind -T copy-mode-vi y send -X copy-selection-and-cancel
 
 # Pane Controls
-bind -n M-Enter run-shell \
-  "[[ $(tmux list-panes | wc -l) -eq 1 ]] && \
-  tmux splitw -h -c '#{pane_current_path}' || \
-  tmux splitw -v -c '#{pane_current_path}'"
+bind -n M-Enter split-window -v -c "#{pane_current_path}"
+bind -n M-S-Enter split-window -h -c "#{pane_current_path}"
 bind h split-window -v -c "#{pane_current_path}"
 bind v split-window -h -c "#{pane_current_path}"
 bind x kill-pane
diff --git a/migrations/1778752973.sh b/migrations/1778752973.sh
index 7604b0e4..7a3079e5 100644
--- a/migrations/1778752973.sh
+++ b/migrations/1778752973.sh
@@ -1,28 +1,21 @@
-echo "Add Alt+Enter smart split keybinding to tmux"
+echo "Add Alt+Enter and Alt+Shift+Enter split keybindings to tmux"
 
 tmux_config="$HOME/.config/tmux/tmux.conf"
 
-if [[ -f $tmux_config ]] && ! grep -q "bind -n M-Enter run-shell" "$tmux_config"; then
-  if grep -q '^bind ? display-popup .*omarchy-menu-tmux-keybindings' "$tmux_config"; then
-    sed -i '/^bind ? display-popup .*omarchy-menu-tmux-keybindings/a bind -n M-Enter run-shell \\
-"[[ $(tmux list-panes | wc -l) -eq 1 ]] \&\& \\
-tmux splitw -h -c '\''#{pane_current_path}'\'' || \\
-tmux splitw -v -c '\''#{pane_current_path}'\''"' "$tmux_config"
-  elif grep -q '^bind q source-file .*Configuration reloaded' "$tmux_config"; then
-    sed -i '/^bind q source-file .*Configuration reloaded/a bind -n M-Enter run-shell \\
-"[[ $(tmux list-panes | wc -l) -eq 1 ]] \&\& \\
-tmux splitw -h -c '\''#{pane_current_path}'\'' || \\
-tmux splitw -v -c '\''#{pane_current_path}'\''"' "$tmux_config"
-  else
-    cat >>"$tmux_config" <<'EOF'
+if [[ -f $tmux_config ]]; then
+  changed=0
 
-# Smart split: horizontal from one pane, vertical otherwise
-bind -n M-Enter run-shell \
-"[[ $(tmux list-panes | wc -l) -eq 1 ]] && \
-tmux splitw -h -c '#{pane_current_path}' || \
-tmux splitw -v -c '#{pane_current_path}'"
-EOF
+  if ! grep -qxF 'bind -n M-Enter split-window -v -c "#{pane_current_path}"' "$tmux_config"; then
+    printf '\nbind -n M-Enter split-window -v -c "#{pane_current_path}"\n' >>"$tmux_config"
+    changed=1
   fi
 
-  omarchy-restart-tmux
+  if ! grep -qxF 'bind -n M-S-Enter split-window -h -c "#{pane_current_path}"' "$tmux_config"; then
+    printf 'bind -n M-S-Enter split-window -h -c "#{pane_current_path}"\n' >>"$tmux_config"
+    changed=1
+  fi
+
+  if (( changed )); then
+    omarchy-restart-tmux
+  fi
 fi