--- fluidsynth-dssi-0.9.1.0/src/fluidsynth-dssi.c	2005-05-30 16:58:55.000000000 +0100
+++ fluidsynth-dssi-0.9.1.1/src/fluidsynth-dssi.c	2008-06-10 22:42:19.000000000 +0100
@@ -457,6 +457,8 @@ fsd_cleanup(LADSPA_Handle handle)
         }
         delete_fluid_synth(fsd_synth.fluid_synth);
         delete_fluid_settings(fsd_synth.fluid_settings);
+        fsd_synth.fluid_synth = NULL;
+        fsd_synth.fluid_settings = NULL;
     }
     free(instance);
 }