diff --git a/.git-blame-ignore-revs b/.git-blame-ignore-revs
index fca4a8315b..32e53646d7 100644
--- a/.git-blame-ignore-revs
+++ b/.git-blame-ignore-revs
@@ -27,6 +27,7 @@ d866510188d26d51bcd6d37239283db690af7e82
 e096358c832ab292ddfd22dd5878826c7c788968
 475831f0fb0e31e97f630eac4e078c886558b61c
 fd5f177131d63d39e79a13918390bdfb642d781e
+a51816e0de380300b69db9fc3e2c7fa83b267b64
 # Ran SystemTests and python/ctsm through black python formatter
 5364ad66eaceb55dde2d3d598fe4ce37ac83a93c
 8056ae649c1b37f5e10aaaac79005d6e3a8b2380