diff --git a/os/hal/platforms/STM32F4xx/stm32_isr.h b/os/hal/platforms/STM32F4xx/stm32_isr.h
index 9a8fa4b25..d0bc7611b 100644
--- a/os/hal/platforms/STM32F4xx/stm32_isr.h
+++ b/os/hal/platforms/STM32F4xx/stm32_isr.h
@@ -52,7 +52,7 @@
 #define STM32_CAN1_TX_NUMBER        CAN1_TX_IRQn
 #define STM32_CAN1_RX0_NUMBER       CAN1_RX0_IRQn
 #define STM32_CAN1_RX1_NUMBER       CAN1_RX1_IRQn
-#define STM32_CAN1_SCE_NUMBER       CAN2_SCE_IRQn
+#define STM32_CAN1_SCE_NUMBER       CAN1_SCE_IRQn
 #define STM32_CAN2_TX_NUMBER        CAN2_TX_IRQn
 #define STM32_CAN2_RX0_NUMBER       CAN2_RX0_IRQn
 #define STM32_CAN2_RX1_NUMBER       CAN2_RX1_IRQn
diff --git a/readme.txt b/readme.txt
index 4b27046f0..39fa45152 100644
--- a/readme.txt
+++ b/readme.txt
@@ -82,6 +82,8 @@
 *****************************************************************************
 
 *** 2.5.1 ***
+- FIX: Fixed STM32F4xx: Wrong CAN1 SCE interrupt number definition (bug
+  3581571).
 - FIX: Fixed STM32_P407: implement mmc_lld_is_card_inserted (bug 3581929)
   (backported to 2.4.3).
 - FIX: Fixed double chSysInit() call in MSP430F1611 demo (bug 3581304)