Don't see delta-peak in ksdensity

Hi.

I have a code:

omega_cur = 0;
omega_total = [];
for i = 1:36
  omega_cur = 0.05;
  omega_total = [omega_total omega_cur'];
end

start_density_base = 0;
d_density_base     = 0.000001;
end_density_base   = 0.15;

density_base = (start_density_base : d_density_base : end_density_base)';

[f] = ksdensity(omega_total, density_base);
f = f / max(f);

plot(density_base, f, 'r', 'LineWidth', 2);
xlim([0 0.15]);
ylim([0 1.01]);

Why I don't see the delta-peak at 0.05? What's wrong with ksdensity?