diff --git a/cmd/kctl-tui/full.go b/cmd/kctl-tui/full.go
index e5f8297..1608176 100644
--- a/cmd/kctl-tui/full.go
+++ b/cmd/kctl-tui/full.go
@@ -192,6 +192,14 @@ func (m *fullModel) handleSelect() (tea.Model, tea.Cmd) {
 
 	case screenNamespace:
 		m.selectedNamespace = item.value
+		if err := kubeexec.CheckTool("tmux"); err != nil {
+			m.err = err
+			return m, nil
+		}
+		if err := kubeexec.CheckTool("k9s"); err != nil {
+			m.err = err
+			return m, nil
+		}
 		return m, m.startTmuxSession()
 	}
 	return m, nil
@@ -257,48 +265,39 @@ func (m *fullModel) loadNamespacesFor(teamValue string) tea.Cmd {
 // configured envs, resolved via the context template, so both are
 // visible side by side.
 func (m *fullModel) startTmuxSession() tea.Cmd {
-	return func() tea.Msg {
-		if err := kubeexec.CheckTool("tmux"); err != nil {
-			return errMsg{err}
-		}
-		if err := kubeexec.CheckTool("k9s"); err != nil {
-			return errMsg{err}
-		}
+	selfPath := "kctl-tui"
+	panelCmd := fmt.Sprintf("%s panel --context=%s --ns=%s --team=%s",
+		selfPath, m.selectedContext, m.selectedNamespace, m.selectedTeam)
 
-		selfPath := "kctl-tui" // resolved via PATH; see README for install instructions
-		panelCmd := fmt.Sprintf("%s panel --context=%s --ns=%s --team=%s",
-			selfPath, m.selectedContext, m.selectedNamespace, m.selectedTeam)
+	envA := m.cfg.Envs[0]
+	ctxA := m.cfg.ResolveContext(envA, m.selectedContext)
+	k9sCmdA := fmt.Sprintf("k9s --context %s -n %s", ctxA, m.selectedNamespace)
 
-		envA := m.cfg.Envs[0]
-		ctxA := m.cfg.ResolveContext(envA, m.selectedContext)
-		k9sCmdA := fmt.Sprintf("k9s --context %s -n %s", ctxA, m.selectedNamespace)
-
-		args := []string{
-			"new-session", "-d", "-s", "kctl",
-			panelCmd, ";",
-			"set-option", "-t", "kctl", "remain-on-exit", "on", ";",
-			"split-window", "-v", "-t", "kctl:0.0", k9sCmdA, ";",
-		}
-		if len(m.cfg.Envs) > 1 {
-			envB := m.cfg.Envs[1]
-			ctxB := m.cfg.ResolveContext(envB, m.selectedContext)
-			k9sCmdB := fmt.Sprintf("k9s --context %s -n %s", ctxB, m.selectedNamespace)
-			args = append(args,
-				"split-window", "-v", "-t", "kctl:0.1", k9sCmdB, ";",
-			)
-		}
-		args = append(args,
-			"select-layout", "-t", "kctl", "even-vertical", ";",
-			"select-pane", "-t", "kctl:0.0", ";",
-			"attach", "-t", "kctl",
-		)
-
-		c := exec.Command("tmux", args...)
-
-		return tea.ExecProcess(c, func(err error) tea.Msg {
-			return tmuxDoneMsg{err: err}
-		})
+	args := []string{
+		"new-session", "-d", "-s", "kctl",
+		panelCmd, ";",
+		"set-option", "-t", "kctl", "remain-on-exit", "on", ";",
+		"split-window", "-v", "-t", "kctl:0.0", k9sCmdA, ";",
 	}
+	if len(m.cfg.Envs) > 1 {
+		envB := m.cfg.Envs[1]
+		ctxB := m.cfg.ResolveContext(envB, m.selectedContext)
+		k9sCmdB := fmt.Sprintf("k9s --context %s -n %s", ctxB, m.selectedNamespace)
+		args = append(args,
+			"split-window", "-v", "-t", "kctl:0.1", k9sCmdB, ";",
+		)
+	}
+	args = append(args,
+		"select-layout", "-t", "kctl", "even-vertical", ";",
+		"select-pane", "-t", "kctl:0.0", ";",
+		"attach", "-t", "kctl",
+	)
+
+	c := exec.Command("tmux", args...)
+
+	return tea.ExecProcess(c, func(err error) tea.Msg {
+		return tmuxDoneMsg{err: err}
+	})
 }
 
 func (m *fullModel) View() string {