diff --git a/cmd/lk/agent.go b/cmd/lk/agent.go
index fbca6857..8adcabc1 100644
--- a/cmd/lk/agent.go
+++ b/cmd/lk/agent.go
@@ -1568,7 +1568,7 @@ func listAgents(ctx context.Context, cmd *cli.Command) error {
 			strings.Join(regions, ","),
 			strings.Join(deployments, ","),
 			agent.Version,
-			formatTime(agent.DeployedAt.AsTime()),
+			formatDeployedAt(agent.DeployedAt.AsTime()),
 		})
 	}
 
diff --git a/cmd/lk/utils.go b/cmd/lk/utils.go
index 378fdf41..34d49191 100644
--- a/cmd/lk/utils.go
+++ b/cmd/lk/utils.go
@@ -495,3 +495,10 @@ func formatTime(t time.Time) string {
 	}
 	return t.Format(time.RFC3339)
 }
+
+func formatDeployedAt(t time.Time) string {
+	if t.IsZero() {
+		return "never deployed"
+	}
+	return t.Format(time.RFC3339)
+}