diff --git a/conda/compass_env/spec-file.template b/conda/compass_env/spec-file.template
index f83a64bf7f..75c0920c29 100644
--- a/conda/compass_env/spec-file.template
+++ b/conda/compass_env/spec-file.template
@@ -47,6 +47,10 @@ make
 netcdf-fortran
 {% endif %}
 
+# CF-compliance
+cfchecker
+udunits2
+
 # Documentation
 m2r
 mock