diff --git a/src/c/libstl/stla_read.h b/src/c/libstl/stla_read.h
index c97e63a..796a256 100644
--- a/src/c/libstl/stla_read.h
+++ b/src/c/libstl/stla_read.h
@@ -10,9 +10,9 @@ typedef struct foug_stla_geom_input foug_stla_geom_input_t;
 struct foug_stla_geom_input
 {
   void* cookie;
-  void (*begin_solid_func)          (foug_stla_geom_input_t*, const char* name);
+  void (*begin_solid_func)          (foug_stla_geom_input_t*, const char*);
   void (*process_next_triangle_func)(foug_stla_geom_input_t*, const foug_stl_triangle_t*);
-  void (*end_solid_func)            (foug_stla_geom_input_t*, const char* name);
+  void (*end_solid_func)            (foug_stla_geom_input_t*, const char*);
   /* void (*parse_error_func)(foug_stla_geom_input_t*, size_t, size_t); */
 };