diff --git a/src/phase_mechanical_elastic.f90 b/src/phase_mechanical_elastic.f90
index 53ed22613..3249b2921 100644
--- a/src/phase_mechanical_elastic.f90
+++ b/src/phase_mechanical_elastic.f90
@@ -21,7 +21,6 @@ module subroutine elastic_init(phases)
     phase, &
     mech, &
     elastic
-  character(len=:), allocatable :: struct
 
 
   print'(/,a)', ' <<<+-  phase:mechanical:elastic init  -+>>>'
@@ -38,19 +37,15 @@ module subroutine elastic_init(phases)
     if (elastic%get_asString('type') /= 'Hooke') call IO_error(200,ext_msg=elastic%get_asString('type'))
 
     associate(prm => param(ph))
-      struct = phase%get_asString('lattice')
-      if (struct /= 'cI' .and. struct /= 'cF' .and. struct /= 'hP' .and. struct /= 'tI') &
-        call IO_error(137,ext_msg=trim(struct))
-
       prm%C66(1,1) = elastic%get_asFloat('C_11')
       prm%C66(1,2) = elastic%get_asFloat('C_12')
       prm%C66(4,4) = elastic%get_asFloat('C_44')
 
-      if (struct == 'hP' .or. struct == 'tI') then
+      if (any(phase_lattice(ph) == ['hP','tI'])) then
         prm%C66(1,3) = elastic%get_asFloat('C_13')
         prm%C66(3,3) = elastic%get_asFloat('C_33')
       endif
-      if (struct == 'tI') prm%C66(6,6) = elastic%get_asFloat('C_66')
+      if (phase_lattice(ph) == 'tI') prm%C66(6,6) = elastic%get_asFloat('C_66')
     end associate
   enddo