diff --git a/variants/mkrfox1200/variant.h b/variants/mkrfox1200/variant.h
index a238e2890..ab74ecac3 100644
--- a/variants/mkrfox1200/variant.h
+++ b/variants/mkrfox1200/variant.h
@@ -142,6 +142,8 @@ static const uint8_t SCK1  = PIN_SPI1_SCK;
 #define PIN_WIRE_SCL        (12u)
 #define PERIPH_WIRE         sercom2
 #define WIRE_IT_HANDLER     SERCOM2_Handler
+static const uint8_t SDA = PIN_WIRE_SDA;
+static const uint8_t SCL = PIN_WIRE_SCL;
 
 // USB
 // ---
diff --git a/variants/mkrgsm1400/variant.h b/variants/mkrgsm1400/variant.h
index 3a4e23fe0..6c4ffdec4 100644
--- a/variants/mkrgsm1400/variant.h
+++ b/variants/mkrgsm1400/variant.h
@@ -122,6 +122,8 @@ static const uint8_t SCK  = PIN_SPI_SCK;
 #define PIN_WIRE_SCL        (12u)
 #define PERIPH_WIRE         sercom2
 #define WIRE_IT_HANDLER     SERCOM2_Handler
+static const uint8_t SDA = PIN_WIRE_SDA;
+static const uint8_t SCL = PIN_WIRE_SCL;
 
 // USB
 // ---
diff --git a/variants/mkrnb1500/variant.h b/variants/mkrnb1500/variant.h
index 072806559..e4d22ea7d 100644
--- a/variants/mkrnb1500/variant.h
+++ b/variants/mkrnb1500/variant.h
@@ -123,6 +123,8 @@ static const uint8_t SCK  = PIN_SPI_SCK;
 #define PIN_WIRE_SCL        (12u)
 #define PERIPH_WIRE         sercom2
 #define WIRE_IT_HANDLER     SERCOM2_Handler
+static const uint8_t SDA = PIN_WIRE_SDA;
+static const uint8_t SCL = PIN_WIRE_SCL;
 
 // USB
 // ---
diff --git a/variants/mkrvidor4000/variant.h b/variants/mkrvidor4000/variant.h
index 9445353f5..17ffeef06 100644
--- a/variants/mkrvidor4000/variant.h
+++ b/variants/mkrvidor4000/variant.h
@@ -126,6 +126,8 @@ static const uint8_t SCK1  = PIN_SPI1_SCK;
 #define PIN_WIRE_SCL        (12u)
 #define PERIPH_WIRE         sercom0
 #define WIRE_IT_HANDLER     SERCOM0_Handler
+static const uint8_t SDA = PIN_WIRE_SDA;
+static const uint8_t SCL = PIN_WIRE_SCL;
 
 // USB
 // ---
diff --git a/variants/mkrwan1300/variant.h b/variants/mkrwan1300/variant.h
index 068fe7571..f99cce7ec 100644
--- a/variants/mkrwan1300/variant.h
+++ b/variants/mkrwan1300/variant.h
@@ -132,6 +132,8 @@ static const uint8_t SCK1  = PIN_SPI1_SCK;
 #define PIN_WIRE_SCL        (12u)
 #define PERIPH_WIRE         sercom2
 #define WIRE_IT_HANDLER     SERCOM2_Handler
+static const uint8_t SDA = PIN_WIRE_SDA;
+static const uint8_t SCL = PIN_WIRE_SCL;
 
 // USB
 // ---
diff --git a/variants/mkrwifi1010/variant.h b/variants/mkrwifi1010/variant.h
index 131ee5656..bd7645cb9 100644
--- a/variants/mkrwifi1010/variant.h
+++ b/variants/mkrwifi1010/variant.h
@@ -139,6 +139,8 @@ static const uint8_t SCK1  = PIN_SPI1_SCK;
 #define PIN_WIRE_SCL        (12u)
 #define PERIPH_WIRE         sercom2
 #define WIRE_IT_HANDLER     SERCOM2_Handler
+static const uint8_t SDA = PIN_WIRE_SDA;
+static const uint8_t SCL = PIN_WIRE_SCL;
 
 // USB
 // ---
diff --git a/variants/mkrzero/variant.h b/variants/mkrzero/variant.h
index 0279f7434..f62250832 100644
--- a/variants/mkrzero/variant.h
+++ b/variants/mkrzero/variant.h
@@ -136,6 +136,8 @@ static const uint8_t SCK1  = PIN_SPI1_SCK;
 #define PIN_WIRE_SCL        (12u)
 #define PERIPH_WIRE         sercom2
 #define WIRE_IT_HANDLER     SERCOM2_Handler
+static const uint8_t SDA = PIN_WIRE_SDA;
+static const uint8_t SCL = PIN_WIRE_SCL;
 
 // USB
 // ---