diff --git a/src/sfloader/fluid_defsfont.c b/src/sfloader/fluid_defsfont.c
index d7960cbb..2e1634bb 100644
--- a/src/sfloader/fluid_defsfont.c
+++ b/src/sfloader/fluid_defsfont.c
@@ -1015,7 +1015,7 @@ fluid_defpreset_import_sfont(fluid_defpreset_t *defpreset,
     while(p != NULL)
     {
         sfzone = (SFZone *)fluid_list_get(p);
-        FLUID_SNPRINTF(zone_name, sizeof(zone_name), "%s/%d", defpreset->name, count);
+        FLUID_SNPRINTF(zone_name, sizeof(zone_name), "pz:%s/%d", defpreset->name, count);
         zone = new_fluid_preset_zone(zone_name);
 
         if(zone == NULL)
@@ -1733,9 +1733,8 @@ fluid_inst_import_sfont(fluid_preset_zone_t *preset_zone, SFInst *sfinst, fluid_
     {
 
         sfzone = (SFZone *)fluid_list_get(p);
-        /* integrates preset zone name in instrument zone name */
-        FLUID_SNPRINTF(zone_name, sizeof(zone_name), "%s/%s/%d", preset_zone->name,
-                       inst->name, count);
+        /* instrument zone name */
+        FLUID_SNPRINTF(zone_name, sizeof(zone_name), "iz:%s/%d", inst->name, count);
 
         inst_zone = new_fluid_inst_zone(zone_name);