diff --git a/pcbnew/swig/pcbnew_scripting_helpers.h b/pcbnew/swig/pcbnew_scripting_helpers.h
index d269c5a620..6f67bb0b80 100644
--- a/pcbnew/swig/pcbnew_scripting_helpers.h
+++ b/pcbnew/swig/pcbnew_scripting_helpers.h
@@ -37,11 +37,16 @@ void    ScriptingSetPcbEditFrame( PCB_EDIT_FRAME* aPCBEdaFrame );
 
 #endif
 
+// For Python scripts: return the current board.
 BOARD*  GetBoard();
 
 BOARD*  LoadBoard( wxString& aFileName, IO_MGR::PCB_FILE_T aFormat );
+
+// Default LoadBoard() to load .kicad_pcb files:.
 BOARD*  LoadBoard( wxString& aFileName );
 
+// Boards can be saved only as .kicad_pcb file format,
+// so no option to choose the file format.
 bool    SaveBoard( wxString& aFileName, BOARD* aBoard );
 
 void    Refresh();