diff --git a/src/main/target/SPARKY2/target.h b/src/main/target/SPARKY2/target.h
index 16da26fb3..bf7cb926c 100644
--- a/src/main/target/SPARKY2/target.h
+++ b/src/main/target/SPARKY2/target.h
@@ -112,6 +112,8 @@
 
 #define USE_I2C
 #define USE_I2C_DEVICE_1
+#define I2C1_SCL                PB8
+#define I2C1_SDA                PB9
 #define I2C_DEVICE              (I2CDEV_1)
 
 #define USE_ADC