diff --git a/source/f90/get_commandline_options.f90 b/source/f90/get_commandline_options.f90
index 6aac3225c544913c3d71061f0c4ebc1e69b58086..e9977be96a19336c3dbf6636d20485f8b56650ce 100644
--- a/source/f90/get_commandline_options.f90
+++ b/source/f90/get_commandline_options.f90
@@ -24,8 +24,8 @@ subroutine get_commandline_options(eelsin_name, eelsou_name, bosin_name, bosou_n
   ! Set up the longOpts struct to define the valid options:
   ! short option, long option, argument (no = 0 / yes = 1), short description
   type(getopt_t) :: longOpts(8) =                                            &
-      [																		 &
-	   getopt_t('v', 'version',   0, 'Print version'),                       &
+      [                                                                      &
+       getopt_t('v', 'version',   0, 'Print version'),                       &
        getopt_t('V', 'version',   0, 'Print version'),                       &
        getopt_t('h', 'help',      0, 'Print options'),                       &
        getopt_t('d', 'dir',       1, 'Change I/O directory'),                &
@@ -45,7 +45,7 @@ subroutine get_commandline_options(eelsin_name, eelsou_name, bosin_name, bosou_n
      
      ! Do different things depending on the option returned:
      select case(option)
-     case('d')	! Change I/O directory
+     case('d')  ! Change I/O directory
         status = chdir(trim(optArg))
         if (status /= 0) then
           write (*,*) 'WARNING: change directory failed!'