diff --git a/rffmpeg.py b/rffmpeg.py
index fa53a43..bc6490c 100755
--- a/rffmpeg.py
+++ b/rffmpeg.py
@@ -259,8 +259,8 @@ def setup_remote_command(target_host):
 
     # Parse and re-quote any problematic arguments
     for arg in cli_ffmpeg_args:
-        # Match bad shell characters: * ( ) whitespace
-        if re.search("[*()\s|\[\]]", arg):
+        # Match bad shell characters: * ' ( ) whitespace
+        if re.search("[*'()\s|\[\]]", arg):
             rffmpeg_ffmpeg_command.append('"{}"'.format(arg))
         else:
             rffmpeg_ffmpeg_command.append("{}".format(arg))