diff --git a/src/mainboard/purism/librem_skl/mainboard.c b/src/mainboard/purism/librem_skl/mainboard.c
index 37a7a01132..462b995ae0 100644
--- a/src/mainboard/purism/librem_skl/mainboard.c
+++ b/src/mainboard/purism/librem_skl/mainboard.c
@@ -43,7 +43,8 @@ const char *smbios_mainboard_serial_number(void)
 		}
 	}
 
-	strncpy(serial_number, CONFIG_MAINBOARD_SERIAL_NUMBER, MAX_SERIAL_LENGTH);
+	strncpy(serial_number, CONFIG_MAINBOARD_SERIAL_NUMBER,
+			MAX_SERIAL_LENGTH);
 
 	return serial_number;
 }