diff --git a/.gitignore b/.gitignore
index d061913..ffa822f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -156,3 +156,4 @@ nam_nmm_berror.f77.gcv
 Rcov_iasialand
 Rcov_crisnpp
 Rcov_iasicsea
+Rcov_crisn21
diff --git a/gsi_binary_files.cmake b/gsi_binary_files.cmake
index 4cf0af2..fd0cacb 100644
--- a/gsi_binary_files.cmake
+++ b/gsi_binary_files.cmake
@@ -120,4 +120,5 @@ list(APPEND gsi_binaries
   Rcov_iasialand
   Rcov_crisnpp
   Rcov_iasicsea
+  Rcov_crisn21
 )