diff --git a/docs/changes.txt b/docs/changes.txt
index e886f895b2..951e0af088 100644
--- a/docs/changes.txt
+++ b/docs/changes.txt
@@ -523,6 +523,7 @@ All:
 - Fix deadlock due to too many events in Unix console apps (Lukasz Michalski).
 - Added wxDir::GetNameWithSep().
 - Allow unloading wxPluginLibrary objects in any order (manyleaves).
+- Fix passing strings with embedded NULs in wxThreadEvents (sodev).
 
 All (GUI):
 
diff --git a/include/wx/event.h b/include/wx/event.h
index 8303647c39..283a0f56cd 100644
--- a/include/wx/event.h
+++ b/include/wx/event.h
@@ -1244,7 +1244,7 @@ public:
     {
         // make sure our string member (which uses COW, aka refcounting) is not
         // shared by other wxString instances:
-        SetString(GetString().c_str());
+        SetString(GetString().Clone());
     }
 
     virtual wxEvent *Clone() const