diff --git a/src/main/target/SPRACINGH7NANO/target.c b/src/main/target/SPRACINGH7NANO/target.c
index 6a043dcd3b..d1315e26fb 100644
--- a/src/main/target/SPRACINGH7NANO/target.c
+++ b/src/main/target/SPRACINGH7NANO/target.c
@@ -41,8 +41,8 @@ const timerHardware_t timerHardware[USABLE_TIMER_CHANNEL_COUNT] = {
     DEF_TIM(TIM5,  CH3, PA2,  TIM_USE_MOTOR,               0,  2,  0 ),
     DEF_TIM(TIM5,  CH4, PA3,  TIM_USE_MOTOR,               0,  3,  0 ), // M4
 
-    DEF_TIM(TIM4,  CH1, PB6,  TIM_USE_MOTOR,               0,  4,  1 ), // M5
-    DEF_TIM(TIM4,  CH2, PB7,  TIM_USE_MOTOR,               0,  5,  1 ), // M6
+    DEF_TIM(TIM4,  CH1, PB6,  TIM_USE_MOTOR,               0,  4,  1 ), // M5 / I2C4_SCL
+    DEF_TIM(TIM4,  CH2, PB7,  TIM_USE_MOTOR,               0,  5,  1 ), // M6 / I2C4_SDA
 
     DEF_TIM(TIM8,  CH1, PC6,  TIM_USE_MOTOR,               0,  6,  2 ), // M7
     DEF_TIM(TIM8,  CH2, PC7,  TIM_USE_MOTOR,               0,  7,  2 ), // M8
diff --git a/src/main/target/SPRACINGH7NANO/target.h b/src/main/target/SPRACINGH7NANO/target.h
index 29456cb32d..44a043f762 100644
--- a/src/main/target/SPRACINGH7NANO/target.h
+++ b/src/main/target/SPRACINGH7NANO/target.h
@@ -127,6 +127,10 @@
 #define I2C1_SDA                PB9
 #define I2C_DEVICE              (I2CDEV_1)
 
+#define USE_I2C_DEVICE_4        // Shared with motor outputs 5/6
+#define I2C4_SCL                PB6
+#define I2C4_SDA                PB7
+
 #define USE_MAG
 #define USE_MAG_HMC5883
 #define USE_MAG_QMC5883