diff --git a/copyparty/__version__.py b/copyparty/__version__.py
index 5b356c3c..b6707e93 100644
--- a/copyparty/__version__.py
+++ b/copyparty/__version__.py
@@ -1,8 +1,8 @@
 # coding: utf-8
 
-VERSION = (0, 11, 41)
+VERSION = (0, 11, 42)
 CODENAME = "the grid"
-BUILD_DT = (2021, 7, 17)
+BUILD_DT = (2021, 7, 18)
 
 S_VERSION = ".".join(map(str, VERSION))
 S_BUILD_DT = "{0:04d}-{1:02d}-{2:02d}".format(*BUILD_DT)
diff --git a/copyparty/mtag.py b/copyparty/mtag.py
index 61858b6f..e3c9c106 100644
--- a/copyparty/mtag.py
+++ b/copyparty/mtag.py
@@ -229,7 +229,7 @@ class MTag(object):
         self.log_func = log_func
         self.args = args
         self.usable = True
-        self.prefer_mt = args.no_mtag_ff
+        self.prefer_mt = not args.no_mtag_ff
         self.backend = "ffprobe" if args.no_mutagen else "mutagen"
         self.can_ffprobe = (
             HAVE_FFPROBE