diff --git a/base/modules/desc/psb_desc_const_mod.f90 b/base/modules/desc/psb_desc_const_mod.f90
index 653017b1..1630a5c3 100644
--- a/base/modules/desc/psb_desc_const_mod.f90
+++ b/base/modules/desc/psb_desc_const_mod.f90
@@ -35,7 +35,7 @@
 !    Auxiliary module for descriptor: constant values. 
 !
 module psb_desc_const_mod
-  use psb_const_mod, only : psb_ipk_, psb_mpk_, psb_lpk_
+  use psb_const_mod, only : psb_ipk_, psb_lpk_, psb_mpk_, psb_epk_
   !
   !     Communication, prolongation & restriction
   !