diff --git a/potentials/CH.KC b/potentials/CH.KC
index 2005472395..d2fe543cf8 100644
--- a/potentials/CH.KC
+++ b/potentials/CH.KC
@@ -6,3 +6,4 @@
 C  C  3.328819  21.847167     12.060173     4.711099  6.678908e-4  0.7718101  3.143921  12.660270     1.0   2.0
 C  H  3.156492  37.400478     8.3910462e-3  55.06177  5.176215e-5  0.4437309  2.508847  11.479055     1.0   1.5
 H  H  2.218816  4.5283006e-5  4.8685736e-5  2.027741  1.193945     0.8968523  0.238105  9.2194017e-5  1.0   1.2
+H  C  3.156492  37.400478     8.3910462e-3  55.06177  5.176215e-5  0.4437309  2.508847  11.479055     1.0   2.2