1 files changed, 1 insertions, 0 deletions
diff --git a/src/audiofile.cc b/src/audiofile.cc
index 67481b2..511df27 100644
--- a/src/audiofile.cc
+++ b/src/audiofile.cc
@@ -61,6 +61,7 @@ bool AudioFile::isValid()
 
 void AudioFile::unload()
 {
+  MutexAutolock l(mutex);
   if(data == preloaded_data) {
     delete data;
     data = NULL;