diff --git a/os/hal/platforms/STM32F30x/stm32_registry.h b/os/hal/platforms/STM32F30x/stm32_registry.h
index f32637aa4..f54164b4f 100644
--- a/os/hal/platforms/STM32F30x/stm32_registry.h
+++ b/os/hal/platforms/STM32F30x/stm32_registry.h
@@ -180,13 +180,13 @@
 #define STM32_USART3_TX_DMA_MSK (STM32_DMA_STREAM_ID_MSK(1, 2))
 #define STM32_USART3_TX_DMA_CHN 0x00000000
 
-#define STM32_HAS_UART4         FALSE
+#define STM32_HAS_UART4         TRUE
 #define STM32_UART4_RX_DMA_MSK  (STM32_DMA_STREAM_ID_MSK(2, 3))
 #define STM32_UART4_RX_DMA_CHN  0x00000000
 #define STM32_UART4_TX_DMA_MSK  (STM32_DMA_STREAM_ID_MSK(2, 5))
 #define STM32_UART4_TX_DMA_CHN  0x00000000
 
-#define STM32_HAS_UART5         FALSE
+#define STM32_HAS_UART5         TRUE
 #define STM32_UART5_RX_DMA_MSK  0
 #define STM32_UART5_RX_DMA_CHN  0x00000000
 #define STM32_UART5_TX_DMA_MSK  0
diff --git a/readme.txt b/readme.txt
index b1ede2a92..71fc1cbe5 100644
--- a/readme.txt
+++ b/readme.txt
@@ -89,6 +89,8 @@
 *****************************************************************************
 
 *** 2.7.0 ***
+- FIX: Fixed UART4 and 5 marked as not present in STM32F30x devices (bug #426)
+  (backported to 2.6.1).
 - FIX: Fixed conditional code error in STM32 PWM driver (bug #424)(backported
   to 2.6.1).
 - FIX: Fixed error in Guards of pwm_lld.h from STM32 (bug #423)(backported to