diff --git a/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F302R8/PinNames.h b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F302R8/PinNames.h
index 2b2e346ede..3c7918739e 100644
--- a/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F302R8/PinNames.h
+++ b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F302R8/PinNames.h
@@ -153,7 +153,7 @@ typedef enum {
     SPI_MISO    = PB_14,
     SPI_SCK     = PB_13,
     SPI_CS      = PB_6,
-    PWM_OUT     = PB_3,
+    PWM_OUT     = PB_4,
 
     // Not connected
     NC = (int)0xFFFFFFFF