diff --git a/boards/arm/sama5/sama5d3x-ek/src/sam_at25.c b/boards/arm/sama5/sama5d3x-ek/src/sam_at25.c
index eae323b02d9..80abece1f0d 100644
--- a/boards/arm/sama5/sama5d3x-ek/src/sam_at25.c
+++ b/boards/arm/sama5/sama5d3x-ek/src/sam_at25.c
@@ -97,7 +97,7 @@ int sam_at25_automount(int minor)
       if (!mtd)
         {
           ferr("ERROR: Failed to bind SPI port %d "
-               "to the AT25 FLASH driver\n");
+               "to the AT25 FLASH driver\n", AT25_PORT);
           return -ENODEV;
         }