diff --git a/tests/pdegen/runs/ppde.inp b/tests/pdegen/runs/mld_pde2d.inp
similarity index 97%
rename from tests/pdegen/runs/ppde.inp
rename to tests/pdegen/runs/mld_pde2d.inp
index 7c604eb9..bd1006c8 100644
--- a/tests/pdegen/runs/ppde.inp
+++ b/tests/pdegen/runs/mld_pde2d.inp
@@ -1,6 +1,6 @@
 BICGSTAB                    ! Iterative method: BiCGSTAB BiCG CGS RGMRES BiCGSTABL CG
 CSR                         ! Storage format CSR COO JAD 
-0100                        ! IDIM; domain size is idim**3
+0100                        ! IDIM; domain size is idim**2
 2                           ! ISTOPC
 2000                        ! ITMAX
 10                          ! ITRACE