diff --git a/base/tools/psb_dfree.f90 b/base/tools/psb_dfree.f90
index e8a5a4e4..58273b6a 100644
--- a/base/tools/psb_dfree.f90
+++ b/base/tools/psb_dfree.f90
@@ -106,9 +106,9 @@ end subroutine psb_dfree
 !    frees a dense matrix structure
 ! 
 ! Arguments: 
-!    x():)    - real, allocatable              The dense matrix to be freed.
-!    desc_a   - type(psb_desc_type).         The communication descriptor.
-!    info     - integer.                       Return code
+!    x(:)     - real, allocatable         The dense matrix to be freed.
+!    desc_a   - type(psb_desc_type).      The communication descriptor.
+!    info     - integer.                    Return code
 subroutine psb_dfreev(x, desc_a, info)
   use psb_base_mod, psb_protect_name => psb_dfreev
   implicit none
diff --git a/config/pac.m4 b/config/pac.m4
index 8c11383d..bc9c64e1 100644
--- a/config/pac.m4
+++ b/config/pac.m4
@@ -335,7 +335,7 @@ ac_link='${MPIFC-$FC} -o conftest${ac_exeext} $FCFLAGS $LDFLAGS conftest.$ac_ext
 dnl Warning : square brackets are EVIL!
 [cat > conftest.$ac_ext <<EOF
            program test
-	       use psb_sparse_mod
+	       use psb_base_mod
            end program test
 EOF
 if AC_TRY_EVAL(ac_link) && test -s conftest${ac_exeext}; then
diff --git a/configure.ac b/configure.ac
index caba00b4..431ea914 100755
--- a/configure.ac
+++ b/configure.ac
@@ -43,7 +43,7 @@ AC_INIT([PSBLAS],3.0, salvatore.filippone@uniroma2.it)
 psblas_cv_version="3.0"
 
 # A sample source file
-AC_CONFIG_SRCDIR([base/modules/psb_sparse_mod.f90])
+AC_CONFIG_SRCDIR([base/modules/psb_base_mod.f90])
 dnl AC_CONFIG_AUX_DIR(config)
 
 # Our custom M4 macros are in the 'config' directory