diff --git a/scripts/pmt_rates.py b/scripts/pmt_rates.py
index 994ce8ca5df42bb0dfe5d3f5bb95078d7064e6e3..959db17cd8828fe57b2111d274f98408df5ef23d 100755
--- a/scripts/pmt_rates.py
+++ b/scripts/pmt_rates.py
@@ -103,7 +103,7 @@ class PMTRates(kp.Module):
 
         m_rates[:, self.max_x - 1] = mean_rates
         self.rates_matrix = m_rates
-        m_hrv[:, self.max_x - 1] = mean_rates
+        m_hrv[:, self.max_x - 1] = hrv
         self.hrv_matrix = m_hrv
 
     def update_plot(self):