diff --git a/base/modules/psb_desc_mod.f90 b/base/modules/psb_desc_mod.f90
index 8b4e6e7c..b7353e64 100644
--- a/base/modules/psb_desc_mod.f90
+++ b/base/modules/psb_desc_mod.f90
@@ -247,6 +247,7 @@ module psb_desc_mod
 
   interface 
     subroutine psb_cd_destroy(desc)
+      import :: psb_desc_type
       implicit none
       !....parameters...
       class(psb_desc_type), intent(inout) :: desc