diff --git a/cbind/base/psb_c_dbase.h b/cbind/base/psb_c_dbase.h
index ece7b840..d1bd39af 100644
--- a/cbind/base/psb_c_dbase.h
+++ b/cbind/base/psb_c_dbase.h
@@ -87,7 +87,7 @@ bool 		psb_c_dgecmpmat_val(psb_c_dspmat *ah,psb_d_t val,psb_d_t tol,psb_c_descri
 psb_i_t psb_c_dgeaddconst(psb_c_dvector *xh,psb_d_t bh,psb_c_dvector *zh,psb_c_descriptor *cdh);
 psb_d_t psb_c_dgenrm2_weight(psb_c_dvector *xh,psb_c_dvector *wh,psb_c_descriptor *cdh);
 psb_d_t psb_c_dgenrm2_weightmask(psb_c_dvector *xh,psb_c_dvector *wh,psb_c_dvector *idvh,psb_c_descriptor *cdh);
-psb_i_t psb_c_dmask(psb_c_dvector *ch,psb_c_dvector *xh,psb_c_dvector *mh, void *t, psb_c_descriptor *cdh);
+psb_i_t psb_c_dmask(psb_c_dvector *ch,psb_c_dvector *xh,psb_c_dvector *mh, bool *t, psb_c_descriptor *cdh);
 psb_d_t psb_c_dgemin(psb_c_dvector *xh,psb_c_descriptor *cdh);
 psb_d_t psb_c_dminquotient(psb_c_dvector *xh,psb_c_dvector *yh, psb_c_descriptor *cdh);
 psb_i_t psb_c_dspscal(psb_d_t alpha, psb_c_dspmat *ah, psb_c_descriptor *cdh);
diff --git a/cbind/base/psb_c_sbase.h b/cbind/base/psb_c_sbase.h
index 85333dec..c259767f 100644
--- a/cbind/base/psb_c_sbase.h
+++ b/cbind/base/psb_c_sbase.h
@@ -87,7 +87,7 @@ bool psb_c_sgecmpmat_val(psb_c_sspmat *ah,psb_s_t val,psb_s_t tol,psb_c_descript
 psb_i_t psb_c_sgeaddconst(psb_c_svector *xh,psb_s_t bh,psb_c_svector *zh,psb_c_descriptor *cdh);
 psb_s_t psb_c_sgenrm2_weight(psb_c_svector *xh,psb_c_svector *wh,psb_c_descriptor *cdh);
 psb_s_t psb_c_sgenrm2_weightmask(psb_c_svector *xh,psb_c_svector *wh,psb_c_svector *idvh,psb_c_descriptor *cdh);
-psb_i_t psb_c_smask(psb_c_svector *ch,psb_c_svector *xh,psb_c_svector *mh, void *t, psb_c_descriptor *cdh);
+psb_i_t psb_c_smask(psb_c_svector *ch,psb_c_svector *xh,psb_c_svector *mh, bool *t, psb_c_descriptor *cdh);
 psb_s_t psb_c_sgemin(psb_c_svector *xh,psb_c_descriptor *cdh);
 psb_i_t psb_c_sspscal(psb_s_t alpha, psb_c_sspmat *ah, psb_c_descriptor *cdh);
 psb_i_t psb_c_sspscalpid(psb_s_t alpha, psb_c_sspmat *ah, psb_c_descriptor *cdh);
diff --git a/cbind/base/psb_d_psblas_cbind_mod.f90 b/cbind/base/psb_d_psblas_cbind_mod.f90
index 07c4d932..da5aa2e2 100644
--- a/cbind/base/psb_d_psblas_cbind_mod.f90
+++ b/cbind/base/psb_d_psblas_cbind_mod.f90
@@ -575,12 +575,12 @@ contains
 
     type(psb_c_dvector)  :: ch,xh,mh
     type(psb_c_descriptor) :: cdh
-    type(c_ptr), value     :: t
+    logical(c_bool)        :: t
 
     type(psb_desc_type), pointer :: descp
     type(psb_d_vect_type), pointer :: cp,xp,mp
     integer(psb_c_ipk_)          :: info
-    logical, pointer   :: fp
+    logical                      :: fp
 
     res = -1
 
@@ -604,10 +604,10 @@ contains
     else
       return
     end if
-    call c_f_pointer(t,fp)
 
     call psb_mask(cp,xp,mp,fp,descp,info)
 
+    t = fp
     res = info
 
   end function psb_c_dmask
diff --git a/cbind/base/psb_s_psblas_cbind_mod.f90 b/cbind/base/psb_s_psblas_cbind_mod.f90
index 271d8a1c..97cc5284 100644
--- a/cbind/base/psb_s_psblas_cbind_mod.f90
+++ b/cbind/base/psb_s_psblas_cbind_mod.f90
@@ -575,12 +575,12 @@ contains
 
     type(psb_c_svector)  :: ch,xh,mh
     type(psb_c_descriptor) :: cdh
-    type(c_ptr), value     :: t
+    logical(c_bool)        :: t
 
     type(psb_desc_type), pointer :: descp
     type(psb_s_vect_type), pointer :: cp,xp,mp
     integer(psb_c_ipk_)          :: info
-    logical, pointer   :: fp
+    logical                      :: fp
 
     res = -1
 
@@ -604,10 +604,10 @@ contains
     else
       return
     end if
-    call c_f_pointer(t,fp)
 
     call psb_mask(cp,xp,mp,fp,descp,info)
 
+    t = fp
     res = info
 
   end function psb_c_smask