diff --git a/src/spectral_damage.f90 b/src/spectral_damage.f90
index 1618f854a..ad4df0a57 100644
--- a/src/spectral_damage.f90
+++ b/src/spectral_damage.f90
@@ -104,7 +104,7 @@ subroutine spectral_damage_init()
 
  write(6,'(/,a)') ' <<<+-  spectral_damage init  -+>>>'
  write(6,'(/,a)')   ' Shanthraj et. al, Handbook of Mechanics of Materials, volume in press, '
- write(6,'(/,a)')	' chapter Spectral Solvers for Crystal Plasticity and Multi-Physics Simulations. Springer, 2018 '
+ write(6,'(/,a)')   ' chapter Spectral Solvers for Crystal Plasticity and Multi-Physics Simulations. Springer, 2018 '
  write(6,'(a15,a)')   ' Current time: ',IO_timeStamp()
 #include "compilation_info.f90"