diff --git a/STM32F1/variants/generic_stm32f103c/board.cpp b/STM32F1/variants/generic_stm32f103c/board.cpp
index d19d965..95ea65b 100644
--- a/STM32F1/variants/generic_stm32f103c/board.cpp
+++ b/STM32F1/variants/generic_stm32f103c/board.cpp
@@ -56,13 +56,13 @@ extern const stm32_pin_info PIN_MAP[BOARD_NR_GPIO_PINS] = {
 
 
     {GPIOA, TIMER2, ADC1,  0, 1,    0}, /* PA0 */
-	{GPIOA, TIMER2, ADC1,  1, 2,    1}, /* PA1 */
+    {GPIOA, TIMER2, ADC1,  1, 2,    1}, /* PA1 */
     {GPIOA, TIMER2, ADC1,  2, 3,    2}, /* PA2 */	
     {GPIOA, TIMER2, ADC1,  3, 4,    3}, /* PA3 */
-	{GPIOA,   NULL, ADC1,  4, 0,    4}, /* PA4 */
-	{GPIOA,   NULL, ADC1,  5, 0,    5}, /* PA5 */
-	{GPIOA, TIMER3, ADC1,  6, 1,    6}, /* PA6 */
-	{GPIOA, TIMER3, ADC1,  7, 2,    7}, /* PA7 */
+    {GPIOA,   NULL, ADC1,  4, 0,    4}, /* PA4 */
+    {GPIOA,   NULL, ADC1,  5, 0,    5}, /* PA5 */
+    {GPIOA, TIMER3, ADC1,  6, 1,    6}, /* PA6 */
+    {GPIOA, TIMER3, ADC1,  7, 2,    7}, /* PA7 */
     {GPIOA, TIMER1, NULL,  8, 1, ADCx}, /* PA8 */	
     {GPIOA, TIMER1, NULL,  9, 2, ADCx}, /* PA9 */	
     {GPIOA, TIMER1, NULL, 10, 3, ADCx}, /* PA10 */
@@ -81,7 +81,7 @@ extern const stm32_pin_info PIN_MAP[BOARD_NR_GPIO_PINS] = {
     {GPIOB, TIMER4, NULL,  6, 1, ADCx}, /* PB6 */
     {GPIOB, TIMER4, NULL,  7, 2, ADCx}, /* PB7 */	
     {GPIOB, TIMER4, NULL,  8, 3, ADCx}, /* PB8 */	
-	{GPIOB,   NULL, NULL,  9, 0, ADCx}, /* PB9 */	
+    {GPIOB, TIMER4, NULL,  9, 4, ADCx}, /* PB9 */	
     {GPIOB,   NULL, NULL, 10, 0, ADCx}, /* PB10 */	
     {GPIOB,   NULL, NULL, 11, 0, ADCx}, /* PB11 */
     {GPIOB,   NULL, NULL, 12, 0, ADCx}, /* PB12 */