diff --git a/I2CManager_STM32.h b/I2CManager_STM32.h
index f386959..9350d14 100644
--- a/I2CManager_STM32.h
+++ b/I2CManager_STM32.h
@@ -39,8 +39,7 @@
 #if defined(I2C_USE_INTERRUPTS) && defined(ARDUINO_ARCH_STM32)
 #if defined(ARDUINO_NUCLEO_F401RE) || defined(ARDUINO_NUCLEO_F411RE) || defined(ARDUINO_NUCLEO_F446RE) \
     || defined(ARDUINO_NUCLEO_F412ZG) || defined(ARDUINO_NUCLEO_F413ZH) \
-    || defined(ARDUINO_NUCLEO_F429ZI) || defined(ARDUINO_NUCLEO_F439ZI) \
-    || defined(ARDUINO_NUCLEO_F446ZE)
+    || defined(ARDUINO_NUCLEO_F429ZI) || defined(ARDUINO_NUCLEO_F439ZI) || defined(ARDUINO_NUCLEO_F446ZE)
 // Assume I2C1 for now - default I2C bus on Nucleo-F411RE and likely all Nucleo-64
 // and Nucleo-144 variants
 I2C_TypeDef *s = I2C1;
diff --git a/WifiInterface.cpp b/WifiInterface.cpp
index 8b2251a..d08ce29 100644
--- a/WifiInterface.cpp
+++ b/WifiInterface.cpp
@@ -68,9 +68,10 @@ Stream * WifiInterface::wifiStream;
 #define NUM_SERIAL 3
 #define SERIAL1 Serial3
 #define SERIAL3 Serial5
-#elif defined(ARDUINO_NUCLEO_F413ZH) || defined(ARDUINO_NUCLEO_F429ZI) || defined(ARDUINO_NUCLEO_F446ZE) || defined(ARDUINO_NUCLEO_F412ZG)
-#define NUM_SERIAL 2
+#elif defined(ARDUINO_NUCLEO_F413ZH) || defined(ARDUINO_NUCLEO_F429ZI) || defined(ARDUINO_NUCLEO_F439ZI) || defined(ARDUINO_NUCLEO_F446ZE) || defined(ARDUINO_NUCLEO_F412ZG)
+#define NUM_SERIAL 3
 #define SERIAL1 Serial6
+#define SERIAL3 Serial2
 #else
 #warning This variant of Nucleo not yet explicitly supported
 #endif