diff --git a/kitsune b/kitsune
index a47bada..7c04656 100755
--- a/kitsune
+++ b/kitsune
@@ -1,6 +1,8 @@
 #!/usr/bin/python3
 
+import argparse
 import datetime
+import fnmatch
 import os
 import sys
 import stat
@@ -23,7 +25,7 @@ def watch(args):
     watched_dirs = []
     watched_files = {}
     filename_length = 0
-    for a in args:
+    for a in args.files:
         st = os.stat(a)
         if stat.S_ISDIR(st.st_mode):
             watched_dirs.append(a)
@@ -43,10 +45,11 @@ def watch(args):
                 last_ts = st.st_mtime_ns
                 for de in os.scandir(d):
                     if de.is_file():
-                        if de.path not in watched_files:
-                            watched_files[de.path] = WatchedFile(de.path)
-                            if len(de.path) > filename_length:
-                                filename_length = len(de.path)
+                        if args.match_filename is None or fnmatch.fnmatch(de.name, args.match_filename):
+                            if de.path not in watched_files:
+                                watched_files[de.path] = WatchedFile(de.path)
+                                if len(de.path) > filename_length:
+                                    filename_length = len(de.path)
 
         # has any of the files changed
         for f in watched_files.values():
@@ -72,6 +75,9 @@ def watch(args):
         time.sleep(0.1)
 
 if __name__ == "__main__":
-    args = sys.argv[1:] if len(sys.argv) > 1 else ["."]
+    ap = argparse.ArgumentParser()
+    ap.add_argument("--match-filename")
+    ap.add_argument("files", nargs="*", default=["."])
+    args = ap.parse_args()
 
     watch(args)