diff --git a/gftool/gfprep/gfarm_pfunc.c b/gftool/gfprep/gfarm_pfunc.c
index b0fe293b9..f2e2a9374 100644
--- a/gftool/gfprep/gfarm_pfunc.c
+++ b/gftool/gfprep/gfarm_pfunc.c
@@ -652,6 +652,8 @@ pfunc_copy_by_gfcp(gfarm_pfunc_t *handle,
 	const char *src_url, char *src_host, gfarm_off_t src_size,
 	const char *dst_url, char *dst_host)
 {
+	gfarm_error_t e;
+	struct pfunc_stat src_st;
 	int result = PFUNC_RESULT_OK, retv;
 	char *src_url_uc = (char *)src_url; /* UNCONST */
 	char *dst_url_uc = (char *)dst_url; /* UNCONST */
@@ -706,7 +708,23 @@ pfunc_copy_by_gfcp(gfarm_pfunc_t *handle,
 		fprintf(stderr, "ERROR: copy failed: gfcp(%s, %s)\n",
 		    src_url, dst_url);
 		result = PFUNC_RESULT_NG;
+		goto end;
+	}
+	e = pfunc_lstat(src_url, &src_st);
+	if (e != GFARM_ERR_NO_ERROR) {
+		fprintf(stderr, "ERROR: copy failed: lstat(%s): %s\n",
+		    src_url, gfarm_error_string(e));
+		result = PFUNC_RESULT_NG;
+		goto end;
+	}
+	e = pfunc_lutimens(dst_url, &src_st);
+	if (e != GFARM_ERR_NO_ERROR) {
+		fprintf(stderr, "ERROR: copy failed: utime(%s): %s\n",
+		    dst_url, gfarm_error_string(e));
+		result = PFUNC_RESULT_NG;
+		goto end;
 	}
+end:
 	return (result);
 }
 
diff --git a/regress/gftool/gfprep/gfpcopy_dir.sh b/regress/gftool/gfprep/gfpcopy_dir.sh
index c4db2e6ca..7295a2211 100755
--- a/regress/gftool/gfprep/gfpcopy_dir.sh
+++ b/regress/gftool/gfprep/gfpcopy_dir.sh
@@ -57,6 +57,7 @@ else
   exit $exit_fail
 fi
 check_local_entries $local_dir1
+compare_mtime gfarm:$gf_dir1/dir/1byte file:$local_dir1/dir/1byte
 
 if $GFPCOPY $OPT file:$local_dir1 gfarm:$gf_dir2; then
   :
@@ -74,6 +75,7 @@ else
   exit $exit_fail
 fi
 check_local_entries $local_dir2
+compare_mtime gfarm:$gf_dir2/dir/1byte file:$local_dir2/dir/1byte
 
 if $GFPCOPY $OPT gfarm:$gf_dir2 file:$local_dir2; then
   :
@@ -84,6 +86,7 @@ else
 fi
 BASENAME=`basename $gf_dir2`
 check_local_entries $local_dir2/$BASENAME
+compare_mtime gfarm:$gf_dir2/dir/1byte file:$local_dir2/$BASENAME/dir/1byte
 
 clean_test
 exit $exit_pass
diff --git a/regress/gftool/gfprep/gfpcopy_file.sh b/regress/gftool/gfprep/gfpcopy_file.sh
index a02e7ed3e..00af8baa1 100755
--- a/regress/gftool/gfprep/gfpcopy_file.sh
+++ b/regress/gftool/gfprep/gfpcopy_file.sh
@@ -21,10 +21,11 @@ fi
 test_copy() {
   SIZE=$1
   filename=COPYFILE
-  OPT="-b 65536 -f -d ${ADD_OPT}"
+  OPT="-b 65536 -f ${ADD_OPT}"
   lfile=$local_dir1/$filename
   gfile=$gf_dir1/$filename
-  if dd if=/dev/urandom of=$lfile bs=$SIZE count=1 > /dev/null; then
+  lfile2=$local_dir2/$filename
+  if dd if=/dev/urandom of=$lfile bs=$SIZE count=1 2> /dev/null; then
     :
   else
     echo dd failed
@@ -38,6 +39,8 @@ test_copy() {
     clean_test
     exit $exit_fail
   fi
+  compare_mtime file:$lfile gfarm:$gfile
+
   if $GFPCOPY $OPT gfarm:$gfile file:$local_dir2; then
     :
   else
@@ -45,7 +48,8 @@ test_copy() {
     clean_test
     exit $exit_fail
   fi
-  if cmp $lfile $local_dir2/$filename; then
+  compare_mtime gfarm:$gfile file:$lfile2
+  if cmp $lfile $lfile2; then
     :
   else
     echo copied data is different
diff --git a/regress/gftool/gfprep/setup_gfprep.sh b/regress/gftool/gfprep/setup_gfprep.sh
index 9411a6343..4791e6d4c 100644
--- a/regress/gftool/gfprep/setup_gfprep.sh
+++ b/regress/gftool/gfprep/setup_gfprep.sh
@@ -62,3 +62,25 @@ check_N() {
     exit $exit_fail
   fi
 }
+
+get_mtime() {
+    file="$1"
+    case $file in
+	gfarm:*)
+	    gfstat "$file" | grep ^Modify | cut -d' ' -f 2,3
+	    ;;
+	file:*)
+	    f=${file#file:}
+	    stat "$f" | grep ^Modify | cut -d' ' -f 2,3
+	    ;;
+    esac
+}
+
+compare_mtime() {
+    m1=`get_mtime $1`
+    m2=`get_mtime $2`
+    if [ "$m1" != "$m2" ]; then
+	echo "compare_mtime: $m1 != $m2 ($1, $2)"
+	exit $exit_fail
+    fi
+}