diff --git a/nvchecker/tools.py b/nvchecker/tools.py
index 1916b74..41901f0 100644
--- a/nvchecker/tools.py
+++ b/nvchecker/tools.py
@@ -64,6 +64,8 @@ def take() -> None:
 def cmp() -> None:
   parser = argparse.ArgumentParser(description='compare version records of nvchecker')
   core.add_common_arguments(parser)
+  parser.add_argument('-q', '--quiet', action='store_true',
+                      help="Quiet mode, output only the names.")
   args = parser.parse_args()
   if core.process_common_arguments(args):
     return
@@ -84,14 +86,7 @@ def cmp() -> None:
   for name, newver in sorted(newvers.items()):
     oldver = oldvers.get(name, None)
     if oldver != newver:
-      print('%s %s -> %s' % (name, oldver, newver))
-
-def completion() -> None:
-  parser = argparse.ArgumentParser(description='helper script to generate completion for nvchecker')
-  core.add_common_arguments(parser)
-  args = parser.parse_args()
-  if core.process_common_arguments(args):
-    return
-
-  entries = core.load_file(args.file, use_keymanager=False)[0]
-  print(" ".join(entries))
+      if args.quiet:
+        print(name)
+      else:
+        print('%s %s -> %s' % (name, oldver, newver))
diff --git a/scripts/nvtake.bash_completion b/scripts/nvtake.bash_completion
index adcc910..23776c2 100644
--- a/scripts/nvtake.bash_completion
+++ b/scripts/nvtake.bash_completion
@@ -5,10 +5,10 @@ _nvtake() {
     local cur _nvchecker_conf_mtime
     _init_completion || return
 
-    _nvchecker_conf_mtime=$(stat -c %Y $HOME/.config/nvchecker/nvchecker.toml)
+    _nvchecker_conf_mtime="$(stat -c %Y $HOME/.config/nvchecker/*)"
     if [ -z "$_nvtake_completion_cache" -o "$_nvchecker_conf_mtime" != "$_nvchecker_conf_mtime_cached" ]; then
-        _nvtake_completion_cache="$(nvcompletion)"
-        _nvchecker_conf_mtime_cached=$_nvchecker_conf_mtime
+        _nvtake_completion_cache="$(nvcmp -q)"
+        _nvchecker_conf_mtime_cached="$_nvchecker_conf_mtime"
     fi
 
     COMPREPLY=( $(compgen -W "$_nvtake_completion_cache" -- "$cur") )
diff --git a/setup.py b/setup.py
index e738e4a..798ffb3 100755
--- a/setup.py
+++ b/setup.py
@@ -36,7 +36,6 @@ setup(
       'nvchecker = nvchecker.__main__:main',
       'nvtake = nvchecker.tools:take',
       'nvcmp = nvchecker.tools:cmp',
-      'nvcompletion = nvchecker.tools:completion',
     ],
   },
   scripts=['scripts/nvchecker-ini2toml'],