diff --git a/doc/fluidsynth_register_adriver.c b/doc/fluidsynth_register_adriver.c
index 254119f9..b5a08b54 100644
--- a/doc/fluidsynth_register_adriver.c
+++ b/doc/fluidsynth_register_adriver.c
@@ -27,6 +27,7 @@ int main()
          */
         adrivers[1] = NULL; /* NULL terminate the array */
 
+        /* register those audio drivers. Note that at this time no fluidsynth objects are alive! */
         int res = fluid_audio_driver_register(adrivers);
         if(res != FLUID_OK)
         {