diff --git a/src/Track.cpp b/src/Track.cpp
index a559fc82a..3f4dc5e14 100644
--- a/src/Track.cpp
+++ b/src/Track.cpp
@@ -720,8 +720,10 @@ TrackList::TrackList(const TrackList &that)
 
 TrackList& TrackList::operator= (const TrackList &that)
 {
-   this->Clear(mDestructorDeletesTracks);
-   DoAssign(that);
+   if (this != &that) {
+      this->Clear(mDestructorDeletesTracks);
+      DoAssign(that);
+   }
    return *this;
 }