diff --git a/os/hal/platforms/STM32F1xx/hal_lld_f100.h b/os/hal/platforms/STM32F1xx/hal_lld_f100.h
index 4a01eb739..3237fd5d0 100644
--- a/os/hal/platforms/STM32F1xx/hal_lld_f100.h
+++ b/os/hal/platforms/STM32F1xx/hal_lld_f100.h
@@ -439,10 +439,10 @@
 #define STM32_USART1_TX_DMA_CHN 0x00000000
 
 #define STM32_HAS_USART2        TRUE
-#define STM32_I2C2_RX_DMA_MSK   (STM32_DMA_STREAM_ID_MSK(1, 5))
-#define STM32_I2C2_RX_DMA_CHN   0x00000000
-#define STM32_I2C2_TX_DMA_MSK   (STM32_DMA_STREAM_ID_MSK(1, 4))
-#define STM32_I2C2_TX_DMA_CHN   0x00000000
+#define STM32_USART2_RX_DMA_MSK (STM32_DMA_STREAM_ID_MSK(1, 6))
+#define STM32_USART2_RX_DMA_CHN 0x00000000
+#define STM32_USART2_TX_DMA_MSK (STM32_DMA_STREAM_ID_MSK(1, 7))
+#define STM32_USART2_TX_DMA_CHN 0x00000000
 
 #define STM32_HAS_USART3        TRUE
 #define STM32_USART3_RX_DMA_MSK (STM32_DMA_STREAM_ID_MSK(1, 3))
diff --git a/readme.txt b/readme.txt
index 01b04339b..5a20f983d 100644
--- a/readme.txt
+++ b/readme.txt
@@ -81,6 +81,8 @@
 *****************************************************************************
 
 *** 2.5.0 ***
+- FIX: Fixed wrong DMA channels on USART2 in STM32F10X_MD_VL devices (bug
+  3536070)(backported to 2.4.2).
 - FIX: Fixed issue with DMA channel init in STM32 ADC and SPI drivers (bug
   3535938)(backported to 2.2.10 and 2.4.2).
 - FIX: Fixed issue debugging mmc_spi (bug 3535887)(trunk only).