diff --git a/y2020/constants.cc b/y2020/constants.cc
index e6f5678..a490e2d 100644
--- a/y2020/constants.cc
+++ b/y2020/constants.cc
@@ -47,7 +47,8 @@
                                               {7.37, {0.645, 520, 540}},
                                               {8.36, {0.645, 550, 560}},
                                               {9.39, {0.66, 550, 580}},
-                                              {10.4, {0.67, 550, 600}}});
+                                              {10.4, {0.670, 550, 600}},
+                                              {11.4, {0.670, 550, 600}}});
 
   // Hood constants.
   hood->zeroing_voltage = 2.0;