diff --git a/src/stm32/stm32f0.c b/src/stm32/stm32f0.c
index 6b13d737..a751b546 100644
--- a/src/stm32/stm32f0.c
+++ b/src/stm32/stm32f0.c
@@ -163,6 +163,7 @@ check_usb_dfu_bootloader(void)
 void
 usb_request_bootloader(void)
 {
+    try_request_canboot();
     usb_reboot_for_dfu_bootloader();
 }
 
diff --git a/src/stm32/stm32f1.c b/src/stm32/stm32f1.c
index 526ec485..25bba83f 100644
--- a/src/stm32/stm32f1.c
+++ b/src/stm32/stm32f1.c
@@ -243,6 +243,7 @@ usb_stm32duino_bootloader(void)
 void
 usb_request_bootloader(void)
 {
+    try_request_canboot();
     if (CONFIG_STM32_FLASH_START_800)
         usb_hid_bootloader();
     else if (CONFIG_STM32_FLASH_START_2000)
diff --git a/src/stm32/stm32f4.c b/src/stm32/stm32f4.c
index 149cd171..58d8dbb4 100644
--- a/src/stm32/stm32f4.c
+++ b/src/stm32/stm32f4.c
@@ -231,6 +231,7 @@ check_usb_dfu_bootloader(void)
 void
 usb_request_bootloader(void)
 {
+    try_request_canboot();
     if (CONFIG_STM32_FLASH_START_4000)
         usb_hid_bootloader();
     usb_reboot_for_dfu_bootloader();
diff --git a/src/stm32/stm32g0.c b/src/stm32/stm32g0.c
index 4906f051..a98cc811 100644
--- a/src/stm32/stm32g0.c
+++ b/src/stm32/stm32g0.c
@@ -133,6 +133,7 @@ check_usb_dfu_bootloader(void)
 void
 usb_request_bootloader(void)
 {
+    try_request_canboot();
     usb_reboot_for_dfu_bootloader();
 }
 
diff --git a/src/stm32/stm32h7.c b/src/stm32/stm32h7.c
index ebb71cfb..c615d286 100644
--- a/src/stm32/stm32h7.c
+++ b/src/stm32/stm32h7.c
@@ -190,6 +190,7 @@ clock_setup(void)
 void
 usb_request_bootloader(void)
 {
+    try_request_canboot();
 }