diff --git a/tools/cabana/chart/chart.cc b/tools/cabana/chart/chart.cc
index 4285c8a7f4..6f2962c229 100644
--- a/tools/cabana/chart/chart.cc
+++ b/tools/cabana/chart/chart.cc
@@ -331,7 +331,7 @@ void ChartView::updateAxisY() {
   }
 
   double delta = std::abs(max - min) < 1e-3 ? 1 : (max - min) * 0.05;
-  auto [min_y, max_y, tick_count] = getNiceAxisNumbers(min - delta, max + delta, axis_y->tickCount());
+  auto [min_y, max_y, tick_count] = getNiceAxisNumbers(min - delta, max + delta, 3);
   if (min_y != axis_y->min() || max_y != axis_y->max() || y_label_width == 0) {
     axis_y->setRange(min_y, max_y);
     axis_y->setTickCount(tick_count);