diff --git a/prec/impl/psb_d_prec_type_impl.f90 b/prec/impl/psb_d_prec_type_impl.f90
index 0eb6e0707..1227a0eda 100644
--- a/prec/impl/psb_d_prec_type_impl.f90
+++ b/prec/impl/psb_d_prec_type_impl.f90
@@ -158,7 +158,7 @@ subroutine psb_d_apply1_vect(prec,x,desc_data,info,trans)
 
 end subroutine psb_d_apply1_vect
 
-subroutine psb_d_apply2v(prec,x,y,desc_data,info,trans)
+subroutine psb_d_apply2v(prec,x,y,desc_data,info,trans, work)
   use psb_base_mod
   use psb_d_prec_type, psb_protect_name => psb_d_apply2v
   implicit none
@@ -167,6 +167,7 @@ subroutine psb_d_apply2v(prec,x,y,desc_data,info,trans)
   real(psb_dpk_),intent(inout)   :: x(:)
   real(psb_dpk_),intent(inout)   :: y(:)
   integer(psb_ipk_), intent(out)              :: info
+  real(psb_dpk_),intent(inout), optional, target :: work(:)
   character(len=1), optional        :: trans
 
   character     :: trans_
@@ -193,7 +194,7 @@ subroutine psb_d_apply2v(prec,x,y,desc_data,info,trans)
     call psb_errpush(info,name,a_err="preconditioner")
     goto 9999
   end if
-  call prec%prec%apply(done,x,dzero,y,desc_data,info,trans_)
+  call prec%prec%apply(done,x,dzero,y,desc_data,info,trans_, work)
 
   call psb_erractionrestore(err_act)
   return
diff --git a/prec/impl/psb_s_prec_type_impl.f90 b/prec/impl/psb_s_prec_type_impl.f90
index 9ab884a85..606ac0e6e 100644
--- a/prec/impl/psb_s_prec_type_impl.f90
+++ b/prec/impl/psb_s_prec_type_impl.f90
@@ -158,7 +158,7 @@ subroutine psb_s_apply1_vect(prec,x,desc_data,info,trans)
 
 end subroutine psb_s_apply1_vect
 
-subroutine psb_s_apply2v(prec,x,y,desc_data,info,trans)
+subroutine psb_s_apply2v(prec,x,y,desc_data,info,trans, work)
   use psb_base_mod
   use psb_s_prec_type, psb_protect_name => psb_s_apply2v
   implicit none
@@ -168,6 +168,8 @@ subroutine psb_s_apply2v(prec,x,y,desc_data,info,trans)
   real(psb_spk_),intent(inout)   :: y(:)
   integer(psb_ipk_), intent(out)              :: info
   character(len=1), optional        :: trans
+  real(psb_spk_),intent(inout), optional, target :: work(:)
+
 
   character     :: trans_
   type(psb_ctxt_type) :: ctxt
@@ -193,7 +195,7 @@ subroutine psb_s_apply2v(prec,x,y,desc_data,info,trans)
     call psb_errpush(info,name,a_err="preconditioner")
     goto 9999
   end if
-  call prec%prec%apply(sone,x,szero,y,desc_data,info,trans_)
+  call prec%prec%apply(sone,x,szero,y,desc_data,info,trans_, work)
 
   call psb_erractionrestore(err_act)
   return
diff --git a/prec/psb_d_prec_type.f90 b/prec/psb_d_prec_type.f90
index 3db41f4e6..d5319ff16 100644
--- a/prec/psb_d_prec_type.f90
+++ b/prec/psb_d_prec_type.f90
@@ -131,7 +131,7 @@ module psb_d_prec_type
   end interface
 
   interface
-    subroutine psb_d_apply2v(prec,x,y,desc_data,info,trans)
+    subroutine psb_d_apply2v(prec,x,y,desc_data,info,trans, work)
       import :: psb_ipk_, psb_desc_type, psb_dprec_type, psb_d_vect_type, psb_dpk_
       type(psb_desc_type),intent(in)          :: desc_data
       class(psb_dprec_type), intent(inout)  :: prec
@@ -139,6 +139,7 @@ module psb_d_prec_type
       real(psb_dpk_),intent(inout)           :: y(:)
       integer(psb_ipk_), intent(out)          :: info
       character(len=1), optional              :: trans
+      real(psb_dpk_),intent(inout), optional, target :: work(:)
     end subroutine psb_d_apply2v
   end interface
 
diff --git a/prec/psb_s_prec_type.f90 b/prec/psb_s_prec_type.f90
index d761db9ce..b09852e68 100644
--- a/prec/psb_s_prec_type.f90
+++ b/prec/psb_s_prec_type.f90
@@ -131,7 +131,7 @@ module psb_s_prec_type
   end interface
 
   interface
-    subroutine psb_s_apply2v(prec,x,y,desc_data,info,trans)
+    subroutine psb_s_apply2v(prec,x,y,desc_data,info,trans, work)
       import :: psb_ipk_, psb_desc_type, psb_sprec_type, psb_s_vect_type, psb_spk_
       type(psb_desc_type),intent(in)          :: desc_data
       class(psb_sprec_type), intent(inout)  :: prec
@@ -139,6 +139,7 @@ module psb_s_prec_type
       real(psb_spk_),intent(inout)           :: y(:)
       integer(psb_ipk_), intent(out)          :: info
       character(len=1), optional              :: trans
+      real(psb_spk_),intent(inout), optional, target :: work(:)
     end subroutine psb_s_apply2v
   end interface