Fix 2.6 incompatibility
Fix 2.6 incompatibility

lgarren/spack,mfherbst/spack,TheTimmy/spack,lgarren/spack,skosukhin/spack,TheTimmy/spack,LLNL/spack,krafczyk/spack,EmreAtes/spack,krafczyk/spack,mfherbst/spack,skosukhin/spack,matthiasdiener/spack,TheTimmy/spack,mfherbst/spack,mfherbst/spack,skosukhin/spack,matthiasdiener/spack,TheTimmy/spack,TheTimmy/spack,iulian787/spack,lgarren/spack,tmerrick1/spack,iulian787/spack,EmreAtes/spack,iulian787/spack,krafczyk/spack,tmerrick1/spack,matthiasdiener/spack,lgarren/spack,mfherbst/spack,iulian787/spack,matthiasdiener/spack,matthiasdiener/spack,tmerrick1/spack,krafczyk/spack,LLNL/spack,skosukhin/spack,LLNL/spack,LLNL/spack,EmreAtes/spack,skosukhin/spack,lgarren/spack,iulian787/spack,tmerrick1/spack,tmerrick1/spack,krafczyk/spack,EmreAtes/spack,LLNL/spack,EmreAtes/spack