diff -Nur audacity-src-1.3.7-orig/src/AudacityApp.cpp audacity-src-1.3.7/src/AudacityApp.cpp
--- audacity-src-1.3.7-orig/src/AudacityApp.cpp	2009-01-27 21:50:58.000000000 +0100
+++ audacity-src-1.3.7/src/AudacityApp.cpp	2009-02-02 19:02:32.000000000 +0100
@@ -766,6 +766,8 @@
       return false;
    }
 
+   gPrefs->Write(wxT("/MP3/MP3LibPath"),wxT("__RPM_LIBDIR__/libmp3lame.so.0"));
+
    // More initialization
    InitCleanSpeech();