diff --git a/src/gmio_stl/internal/stla_infos_get.h b/src/gmio_stl/internal/stla_infos_get.h
index 16dda66..bbc0155 100644
--- a/src/gmio_stl/internal/stla_infos_get.h
+++ b/src/gmio_stl/internal/stla_infos_get.h
@@ -18,6 +18,7 @@
 
 #include "../stl_infos.h"
 
+/*! Find infos from a STL ASCII stream */
 int gmio_stla_infos_get(
         struct gmio_stl_infos_get_args* args, unsigned flags);
 
diff --git a/src/gmio_stl/internal/stlb_infos_get.h b/src/gmio_stl/internal/stlb_infos_get.h
index 9ebc856..4d1eb0e 100644
--- a/src/gmio_stl/internal/stlb_infos_get.h
+++ b/src/gmio_stl/internal/stlb_infos_get.h
@@ -19,6 +19,7 @@
 #include "../stl_infos.h"
 #include "../../gmio_core/endian.h"
 
+/*! Find infos from a STL binary stream */
 int gmio_stlb_infos_get(
         struct gmio_stl_infos_get_args* args,
         enum gmio_endianness byte_order,
diff --git a/src/gmio_stl/internal/stlb_write.c b/src/gmio_stl/internal/stlb_write.c
index 486ee47..660d773 100644
--- a/src/gmio_stl/internal/stlb_write.c
+++ b/src/gmio_stl/internal/stlb_write.c
@@ -99,7 +99,7 @@ int gmio_stlb_write(
         error = gmio_stlb_write_header(
                     &core_args->stream,
                     byte_order,
-                    args->options.stlb_header_data,
+                    args->options.stlb_header,
                     facet_count);
         if (gmio_error(error))
             return error;
diff --git a/src/gmio_stl/stl_infos.h b/src/gmio_stl/stl_infos.h
index 09ffc4b..094c958 100644
--- a/src/gmio_stl/stl_infos.h
+++ b/src/gmio_stl/stl_infos.h
@@ -44,16 +44,18 @@ struct gmio_stl_infos
      *  For STL ascii it includes the "endsolid" tag */
     gmio_streamsize_t size;
 
-    /*! STL ascii only: name of the solid, the pointer has to be set by the
-     *  caller of gmio_stl_infos_get() */
+    /*! STL ascii only: name of the solid
+     *
+     *  The pointer has to be set by the caller of gmio_stl_infos_get() */
     char* stla_solidname;
 
-    /*! STL ascii only: maximum length(capacity) of stla_solidname, it has to be
-     *  set by the caller of gmio_stl_infos_get()
+    /*! STL ascii only: maximum length(capacity) of stla_solidname
+     *
+     *  The value has to be set by the caller of gmio_stl_infos_get()
      */
     size_t stla_solidname_maxlen;
 
-    /*! STL binary only */
+    /*! STL binary only: header(80-bytes) of STL data */
     struct gmio_stlb_header stlb_header;
 };
 
diff --git a/src/gmio_stl/stl_rwargs.h b/src/gmio_stl/stl_rwargs.h
index 4f1cdf1..ac9ecc1 100644
--- a/src/gmio_stl/stl_rwargs.h
+++ b/src/gmio_stl/stl_rwargs.h
@@ -42,7 +42,7 @@ struct gmio_stl_read_args
     /*! Optional pointer to a function that returns the size(in bytes) of the
      *  STL ascii data to read
      *
-     *  Useful only with STL ascii format. If set to NULL then by default the
+     *  Useful only with STL ascii format. If set to NULL then by default
      *  gmio_stream::func_size() is called.
      *
      *  The resulting stream size is passed to