diff --git a/tsmark/__init__.py b/tsmark/__init__.py
index 6d1de06..82af21d 100644
--- a/tsmark/__init__.py
+++ b/tsmark/__init__.py
@@ -1,7 +1,7 @@
 from tsmark.video_annotator import Marker
 import argparse
 
-VERSION = "0.4.1"
+VERSION = "0.4.2"
 
 
 def get_options():
diff --git a/tsmark/video_annotator.py b/tsmark/video_annotator.py
index 824a6eb..9d7db68 100755
--- a/tsmark/video_annotator.py
+++ b/tsmark/video_annotator.py
@@ -265,7 +265,7 @@ class Marker:
             print("# {}: {} / {}".format(i + 1, self.format_time(ts), ts + 1))
         if len(self.stamps) > 0:
             print(
-                "ffmpeg -i '{}' -ss {} -to {} -c copy {}.trimmed.mp4".format(
+                "ffmpeg -i '{}' -ss {} -to {} -c copy '{}.trimmed.mp4'".format(
                     self.opts.video,
                     self.format_time(self.stamps[0]),
                     self.format_time(self.stamps[-1]),