diff --git a/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F103RB/PeripheralNames.h b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F103RB/PeripheralNames.h
index cb88f2c4a0..2a777210ed 100644
--- a/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F103RB/PeripheralNames.h
+++ b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F103RB/PeripheralNames.h
@@ -52,7 +52,7 @@ typedef enum {
 } PWMName;
 
 typedef enum {
-     CAN_1 = (int)CAN1_BASE
+    CAN_1 = (int)CAN1_BASE
 } CANName;
 
 #ifdef __cplusplus
diff --git a/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F103RB/objects.h b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F103RB/objects.h
index f35111e33f..c4e4a3e8b4 100644
--- a/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F103RB/objects.h
+++ b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F103RB/objects.h
@@ -64,7 +64,8 @@ struct spi_s {
 };
 
 struct i2c_s {
-    I2CName i2c;
+    I2CName  i2c;
+    uint32_t clk_speed;
 };
 
 struct pwmout_s {
diff --git a/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F103RB/pinmap.c b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F103RB/pinmap.c
index ee58ee0584..0f0e6ce854 100644
--- a/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F103RB/pinmap.c
+++ b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F103RB/pinmap.c
@@ -24,7 +24,8 @@ static const uint32_t AF_mapping[] = {
   GPIO_Remap_USART1,   // 3
   GPIO_Remap_USART2,   // 4
   GPIO_FullRemap_TIM2, // 5
-  GPIO_FullRemap_TIM3  // 6
+  GPIO_FullRemap_TIM3, // 6
+  GPIO_Remap_I2C1      // 7
 };
 
 /**