diff --git a/os/hal/platforms/STM32F1xx/stm32_isr.h b/os/hal/platforms/STM32F1xx/stm32_isr.h
index 940ade289..9cdc406a3 100644
--- a/os/hal/platforms/STM32F1xx/stm32_isr.h
+++ b/os/hal/platforms/STM32F1xx/stm32_isr.h
@@ -49,8 +49,13 @@
 #define STM32_CAN2_RX1_HANDLER      CAN2_RX1_IRQHandler
 #define STM32_CAN2_SCE_HANDLER      CAN2_SCE_IRQHandler
 
+#ifdef STM32F10X_CL
+#define STM32_CAN1_TX_NUMBER        CAN1_TX_IRQn
+#define STM32_CAN1_RX0_NUMBER       CAN1_RX0_IRQn
+#else
 #define STM32_CAN1_TX_NUMBER        USB_HP_CAN1_TX_IRQn
 #define STM32_CAN1_RX0_NUMBER       USB_LP_CAN1_RX0_IRQn
+#endif
 #define STM32_CAN1_RX1_NUMBER       CAN1_RX1_IRQn
 #define STM32_CAN1_SCE_NUMBER       CAN1_SCE_IRQn
 #define STM32_CAN2_TX_NUMBER        CAN2_TX_IRQn
diff --git a/readme.txt b/readme.txt
index 67b9f1d43..7373cf501 100644
--- a/readme.txt
+++ b/readme.txt
@@ -83,6 +83,8 @@
 *****************************************************************************
 
 *** 2.5.1 ***
+- FIX: Fixed STM32F10X_CL: Wrong CAN1 interrupt number definitions (bug
+  3575766).
 - FIX: Fixed superfluous pack #defines cause nasty warning (bug 3575662)
   (backported to 2.4.3).
 - FIX: Fixed mac.c won't compile due to misplaced declarations (bug 3575657)