diff --git a/packages/mom5/package.py b/packages/mom5/package.py
index fce38eb..898b936 100644
--- a/packages/mom5/package.py
+++ b/packages/mom5/package.py
@@ -30,7 +30,7 @@ class Mom5(MakefilePackage):
         multi=False,
         description="Build MOM5 to support a particular use case.")
 
-    with when("@:access-esm0,access-esm2:"):
+    with when("@master"):
         depends_on("netcdf-c@4.7.4:")
         depends_on("netcdf-fortran@4.5.2:")
         # Depend on virtual package "mpi".
diff --git a/packages/oasis3-mct/package.py b/packages/oasis3-mct/package.py
index 435c4be..41fb8ff 100644
--- a/packages/oasis3-mct/package.py
+++ b/packages/oasis3-mct/package.py
@@ -23,7 +23,7 @@ class Oasis3Mct(MakefilePackage):
     variant("deterministic", default=False, description="Deterministic build.")
     variant("optimisation_report", default=False, description="Generate optimisation reports.")
 
-    with when("@:access-esm0,access-esm2:"):
+    with when("@master"):
         depends_on("netcdf-fortran@4.5.2:")
         # Depend on virtual package "mpi".
         depends_on("mpi")