diff --git a/libs/ardour/fluid_synth.cc b/libs/ardour/fluid_synth.cc
index 9d20f95358..f55db3e7c9 100644
--- a/libs/ardour/fluid_synth.cc
+++ b/libs/ardour/fluid_synth.cc
@@ -40,7 +40,6 @@ FluidSynth::FluidSynth (float samplerate, int polyphony)
 	}
 
 	fluid_settings_setnum (_settings, "synth.sample-rate", samplerate);
-	fluid_settings_setint (_settings, "synth.parallel-render", 1);
 	fluid_settings_setint (_settings, "synth.threadsafe-api", 0);
 
 	_synth = new_fluid_synth (_settings);
diff --git a/libs/plugins/a-fluidsynth.lv2/a-fluidsynth.cc b/libs/plugins/a-fluidsynth.lv2/a-fluidsynth.cc
index 393c29b117..e25dd52c13 100644
--- a/libs/plugins/a-fluidsynth.lv2/a-fluidsynth.cc
+++ b/libs/plugins/a-fluidsynth.lv2/a-fluidsynth.cc
@@ -320,7 +320,6 @@ instantiate (const LV2_Descriptor*     descriptor,
 	}
 
 	fluid_settings_setnum (self->settings, "synth.sample-rate", rate);
-	fluid_settings_setint (self->settings, "synth.parallel-render", 1);
 	fluid_settings_setint (self->settings, "synth.threadsafe-api", 0);
 	fluid_settings_setstr (self->settings, "synth.midi-bank-select", "mma");