diff --git a/cpukit/ChangeLog b/cpukit/ChangeLog
index bb0251f495..db4f4a94ca 100644
--- a/cpukit/ChangeLog
+++ b/cpukit/ChangeLog
@@ -4,6 +4,9 @@
 	* libcsupport/include/rtems/libio.h: Mark rtems_off64_t as
 	deprecated.
 	Replace rtems_off64_t with off_t.
+	* libfs/src/defaults/default_ftruncate.c, 
+	libfs/src/defaults/default_lseek.c:
+	Replace rtems_off64_t with off_t.
 
 2011-11-06      Ralf Corsépius <ralf.corsepius@rtems.org>
 
diff --git a/cpukit/libfs/src/defaults/default_ftruncate.c b/cpukit/libfs/src/defaults/default_ftruncate.c
index 9214b77448..b1e958f36c 100644
--- a/cpukit/libfs/src/defaults/default_ftruncate.c
+++ b/cpukit/libfs/src/defaults/default_ftruncate.c
@@ -15,7 +15,7 @@
 
 int rtems_filesystem_default_ftruncate(
   rtems_libio_t *iop,
-  rtems_off64_t  length
+  off_t          length
 )
 {
   rtems_set_errno_and_return_minus_one( ENOTSUP );
diff --git a/cpukit/libfs/src/defaults/default_lseek.c b/cpukit/libfs/src/defaults/default_lseek.c
index 21ae23ee93..09a691eb61 100644
--- a/cpukit/libfs/src/defaults/default_lseek.c
+++ b/cpukit/libfs/src/defaults/default_lseek.c
@@ -13,9 +13,9 @@
 #include <rtems/libio_.h>
 #include <rtems/seterr.h>
 
-rtems_off64_t rtems_filesystem_default_lseek(
+off_t rtems_filesystem_default_lseek(
   rtems_libio_t *iop,
-  rtems_off64_t  length,
+  off_t          length,
   int            whence
 )
 {