diff --git a/cores/arduino/ard_sup/Arduino_defines.h b/cores/arduino/ard_sup/Arduino_defines.h
index fe6fd5a2..dc8e72c1 100644
--- a/cores/arduino/ard_sup/Arduino_defines.h
+++ b/cores/arduino/ard_sup/Arduino_defines.h
@@ -48,3 +48,5 @@
 #define bit(b) (1UL << (b))
 
 #define digitalPinToInterrupt(P) (P) // all apollo3 pads are interrupt capable
+
+#define SS 255 //Built in SD library requires an SS pin be defined. Pin # is arbitrary.
\ No newline at end of file
diff --git a/variants/SparkFun_Artemis_Thing_Plus/config/variant.h b/variants/SparkFun_Artemis_Thing_Plus/config/variant.h
index d3d2ed1b..0e128190 100644
--- a/variants/SparkFun_Artemis_Thing_Plus/config/variant.h
+++ b/variants/SparkFun_Artemis_Thing_Plus/config/variant.h
@@ -62,16 +62,16 @@ extern Uart Serial1;
 // SPI Pins
 #define MOSI 11
 #define MISO 12
-#define SCK  13
+#define SCK 13
 // Wire Pins
-#define SCL  15
-#define SDA  14
+#define SCL 15
+#define SDA 14
 // Wire1 Pins
 #define SCL1 17
 #define SDA1 16
 // Serial1 Pins
-#define TX1  1
-#define RX1  0
+#define TX1 1
+#define RX1 0
 // PDM Microphone Pins
 #define MIC_DATA 27
 #define MIC_CLOCK 28