diff --git a/avr/board.gpr b/avr/board.gpr
index c295478..593c706 100644
--- a/avr/board.gpr
+++ b/avr/board.gpr
@@ -27,9 +27,10 @@ project Board extends "avr.gpr" is
    for Languages use ("Ada");
    for Object_Dir use "avr_lib/board-" & BOARD & "/obj";
 
-   for Source_Dirs use ("avr_lib/board-" & BOARD,--  board specific dir first
+   for Source_Dirs use ("avr_lib/board-" & BOARD, --  board specific dir first
                         "avr_lib/" & MCU,  --  then look in the MCU specific dir
-                        "avr_lib");        --  and then look in the default dir
+                        "avr_lib"        --  and then look in the default dir
+			);
 
    case BOARD is
       when "arduino" | "xbeeimu" =>