diff --git a/var/spack/repos/builtin/packages/libfabric/package.py b/var/spack/repos/builtin/packages/libfabric/package.py
index 87eaf6c50b..8465974532 100644
--- a/var/spack/repos/builtin/packages/libfabric/package.py
+++ b/var/spack/repos/builtin/packages/libfabric/package.py
@@ -37,7 +37,8 @@ class Libfabric(AutotoolsPackage):
                'rxm',
                'rxd',
                'mlx',
-               'tcp')
+               'tcp',
+               'efa')
 
     variant(
        'fabrics',