diff --git a/ChangeLog b/ChangeLog
index 61ebd1681..2b2ca8de3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 2005-02-27  Moritz Bunkus  <moritz@bunkus.org>
 
+	* mmg: bug fix: It was possible to select a file for appending
+	even though no file was added first.
+
 	* mkvmerge: bug fix: mkvmerge was wrongly outputting large numbers
 	of warnings when Remuxing AVC/h.264 video from a Matroska file.
 
diff --git a/src/mmg/tab_input.cpp b/src/mmg/tab_input.cpp
index cb6861f0c..91056aa1e 100644
--- a/src/mmg/tab_input.cpp
+++ b/src/mmg/tab_input.cpp
@@ -1492,6 +1492,7 @@ tab_input::load(wxConfigBase *cfg) {
   selected_file = -1;
   selected_track = -1;
   b_remove_file->Enable(false);
+  b_append_file->Enable(false);
 
   files.clear();
   tracks.clear();