1 files changed, 1 insertions, 0 deletions
diff --git a/src/gpx.h b/src/gpx.h
index d8f7d4e..7b1c925 100644
--- a/src/gpx.h
+++ b/src/gpx.h
@@ -30,6 +30,7 @@ G_BEGIN_DECLS
  * Options adapting GPX writing.
  */
 typedef struct {
+	// NB force options only apply to trackpoints
 	gboolean force_ele; /// Force ele field
 	gboolean force_time; /// Force time field
 	gboolean hidden; /// Write invisible tracks/waypoints (default is yes)