diff --git a/var/spack/repos/builtin/packages/foam-extend/package.py b/var/spack/repos/builtin/packages/foam-extend/package.py
index 4479fc9bee..0ff5765895 100644
--- a/var/spack/repos/builtin/packages/foam-extend/package.py
+++ b/var/spack/repos/builtin/packages/foam-extend/package.py
@@ -29,6 +29,7 @@ class FoamExtend(Package):
     depends_on('python')
     depends_on('flex@:2.5.99')
     depends_on('zlib')
+    depends_on('cmake', type='build')
 
     depends_on('scotch ~ metis', when='~ptscotch+scotch')
     depends_on('scotch ~ metis + mpi', when='+ptscotch')
diff --git a/var/spack/repos/builtin/packages/sundials/package.py b/var/spack/repos/builtin/packages/sundials/package.py
index c55198a850..e52b90eb8a 100644
--- a/var/spack/repos/builtin/packages/sundials/package.py
+++ b/var/spack/repos/builtin/packages/sundials/package.py
@@ -42,6 +42,7 @@ class Sundials(Package):
     variant('openmp',  default=False, description='Enable OpenMP support')
     variant('pthread', default=True,  description='Enable POSIX threads support')
 
+    depends_on('cmake', type='build')
     depends_on('mpi',                when='+mpi')
     depends_on('blas',               when='+lapack')
     depends_on('lapack',             when='+lapack')