diff --git a/os/hal/ports/STM32/STM32L4xx/stm32_registry.h b/os/hal/ports/STM32/STM32L4xx/stm32_registry.h
index c2acbe680..95563d393 100644
--- a/os/hal/ports/STM32/STM32L4xx/stm32_registry.h
+++ b/os/hal/ports/STM32/STM32L4xx/stm32_registry.h
@@ -1173,9 +1173,9 @@
 #define STM32_I2C3_TX_DMA_CHN               0x00000030
 
 #define STM32_HAS_I2C4                      TRUE
-#define STM32_I2C4_RX_DMA_MSK               (STM32_DMA_STREAM_ID_MSK(2, 2))
+#define STM32_I2C4_RX_DMA_MSK               (STM32_DMA_STREAM_ID_MSK(2, 1))
 #define STM32_I2C4_RX_DMA_CHN               0x00000000
-#define STM32_I2C4_TX_DMA_MSK               (STM32_DMA_STREAM_ID_MSK(2, 1))
+#define STM32_I2C4_TX_DMA_MSK               (STM32_DMA_STREAM_ID_MSK(2, 2))
 #define STM32_I2C4_TX_DMA_CHN               0x00000000
 
 /* QUADSPI attributes.*/
diff --git a/readme.txt b/readme.txt
index 3070f3552..ad6cdbd2a 100644
--- a/readme.txt
+++ b/readme.txt
@@ -76,6 +76,7 @@
 *** 20.3.5 ***
 - FIX: Fixed wrong number of CAN filters for STM32L496/9A6 (bug #1204).
 - FIX: Fixed DMA stream not disabled in STM32 QUADSPIv1 driver (bug #1203).
+- FIX: Fixed I2C4 DMA streams for STM32L496 (bug #1202).
 - FIX: Fixed STM32_SDMMC2_NUMBER on STM32H7 (bug #1201).
 
 *** 20.3.4 ***