diff --git a/src/compute_convergence_criterion.f90 b/src/compute_convergence_criterion.f90
index 745bee9fae747880869b0e9aa23b3e38bbe5f2ec..f570169b65b057a169e08eb09e360fbaa919db60 100644
--- a/src/compute_convergence_criterion.f90
+++ b/src/compute_convergence_criterion.f90
@@ -49,8 +49,8 @@ logical velocity_converged
 !(((((((((((((((( declaration of the subroutine internal variables )))))))))))))
 !------------------------------------------------------------------------------|
   
-integer err,ierr,iproc,nproc,i
-double precision dduvw,duvw,uvw,time1,time2
+integer ierr,iproc,nproc,i
+double precision dduvw,duvw,uvw
 double precision velocity_diff_norm,maxdiff,oldmax
 character*72 shift