diff --git a/var/spack/repos/builtin/packages/trilinos/package.py b/var/spack/repos/builtin/packages/trilinos/package.py
index 038cd8bc631..efed5c85435 100644
--- a/var/spack/repos/builtin/packages/trilinos/package.py
+++ b/var/spack/repos/builtin/packages/trilinos/package.py
@@ -555,6 +555,7 @@ def define_enable(suffix, value=None):
             ('LAPACK', 'lapack'),
             ('Matio', 'matio'),
             ('METIS', 'metis'),
+            ('MUMPS', 'mumps'),
             ('Netcdf', 'netcdf-c'),
             ('SCALAPACK', 'scalapack'),
             ('SuperLU', 'superlu'),