diff --git a/include/fluidsynth/synth.h b/include/fluidsynth/synth.h
index c913c3e4..ad37f1de 100644
--- a/include/fluidsynth/synth.h
+++ b/include/fluidsynth/synth.h
@@ -270,7 +270,7 @@ enum fluid_synth_add_mod {
   FLUID_SYNTH_ADD,              /**< Add (sum) modulator amounts */
 };
 
-FLUIDSYNTH_API int fluid_synth_add_default_mod(fluid_synth_t* synth, fluid_mod_t* mod, enum fluid_synth_add_mod mode);
+FLUIDSYNTH_API int fluid_synth_add_default_mod(fluid_synth_t* synth, fluid_mod_t* mod, int mode);
 
 
 /*
diff --git a/src/synth/fluid_synth.c b/src/synth/fluid_synth.c
index 4c20ed50..145cf370 100644
--- a/src/synth/fluid_synth.c
+++ b/src/synth/fluid_synth.c
@@ -1083,7 +1083,7 @@ fluid_synth_damp_voices_by_sostenuto_LOCAL(fluid_synth_t* synth, int chan)
  * @return FLUID_OK on success, FLUID_FAILED otherwise
  */
 int
-fluid_synth_add_default_mod(fluid_synth_t* synth, fluid_mod_t* mod, enum fluid_synth_add_mod mode)
+fluid_synth_add_default_mod(fluid_synth_t* synth, fluid_mod_t* mod, int mode)
 {
   fluid_mod_t* default_mod;
   fluid_mod_t* last_mod = NULL;