diff --git a/src/SparkFun_u-blox_GNSS_Arduino_Library.cpp b/src/SparkFun_u-blox_GNSS_Arduino_Library.cpp
index 5b45143..2d17bff 100644
--- a/src/SparkFun_u-blox_GNSS_Arduino_Library.cpp
+++ b/src/SparkFun_u-blox_GNSS_Arduino_Library.cpp
@@ -857,8 +857,7 @@ boolean SFE_UBLOX_GNSS::checkUbloxSpi(ubxPacket *incomingUBX, uint8_t requestedC
   //Note to future self: maybe we need the equivalent of "if (millis() - lastCheck >= i2cPollingWait)" here?
   //At the moment the code will pound the SPI bus while waiting for data...
    
-  SPISettings settingsA(_spiSpeed, MSBFIRST, SPI_MODE0);  
-  _spiPort->beginTransaction(settingsA);
+  _spiPort->beginTransaction(SPISettings(_spiSpeed, MSBFIRST, SPI_MODE0));
   digitalWrite(_csPin, LOW);
   uint8_t byteReturned = _spiPort->transfer(0xFF);
   // Note to future self: I think the 0xFF check will cause problems when attempting to process (e.g.) RAWX data
@@ -2933,8 +2932,7 @@ void SFE_UBLOX_GNSS::sendSpiCommand(ubxPacket *outgoingUBX)
   // Start at the beginning of the SPI buffer
   spiBufferIndex = 0;
 
-  SPISettings settingsA(_spiSpeed, MSBFIRST, SPI_MODE0);
-  _spiPort->beginTransaction(settingsA);
+  _spiPort->beginTransaction(SPISettings(_spiSpeed, MSBFIRST, SPI_MODE0));
   digitalWrite(_csPin, LOW);
   //Write header bytes
   spiTransfer(UBX_SYNCH_1); //μ - oh ublox, you're funny. I will call you micro-blox from now on.
diff --git a/src/SparkFun_u-blox_GNSS_Arduino_Library.h b/src/SparkFun_u-blox_GNSS_Arduino_Library.h
index e42abd2..b274320 100644
--- a/src/SparkFun_u-blox_GNSS_Arduino_Library.h
+++ b/src/SparkFun_u-blox_GNSS_Arduino_Library.h
@@ -1303,7 +1303,7 @@ private:
 
 	SPIClass *_spiPort;				//The instance of SPIClass
 	uint8_t _csPin;					//The chip select pin
-	int _spiSpeed;					//The speed to use for SPI (Hz)
+	uint32_t _spiSpeed;				//The speed to use for SPI (Hz)
 
 	uint8_t _gpsI2Caddress = 0x42; //Default 7-bit unshifted address of the ublox 6/7/8/M8/F9 series
 	//This can be changed using the ublox configuration software