diff --git a/os/hal/ports/STM32/STM32F4xx/stm32_registry.h b/os/hal/ports/STM32/STM32F4xx/stm32_registry.h
index 39c681e1e..75b2661c3 100644
--- a/os/hal/ports/STM32/STM32F4xx/stm32_registry.h
+++ b/os/hal/ports/STM32/STM32F4xx/stm32_registry.h
@@ -2857,7 +2857,7 @@
 #define STM32_HAS_LPUART1                   FALSE
 
 /* USB attributes.*/
-#define STM32_OTG_STEPPING                  2
+#define STM32_OTG_STEPPING                  1
 #define STM32_HAS_OTG1                      TRUE
 #define STM32_OTG1_ENDPOINTS                3
 #define STM32_HAS_OTG2                      TRUE
diff --git a/readme.txt b/readme.txt
index 297cb13d4..c23836b07 100644
--- a/readme.txt
+++ b/readme.txt
@@ -110,6 +110,8 @@
        ARMv7-M and ARMv8-M-ML.
 - NEW: On STM32WBxx added a check on STM32_LSI_ENABLE required by IWDG.
 - NEW: Added SPIv2 support also to STM32WB and STM32WL.
+- FIX: Fixed invalid STM32_OTG_STEPPING for STM32F40_41xxx (bug #1214)
+       (backported to 21.11.2).
 - FIX: Fixed SPIv2 driver compile fails when SPI_USE_SYNCHRONIZATION is FALSE
        (bug #1213)(backported to 21.11.2).
 - FIX: Fixed invalid state transition in SNOR flash driver (bug #1212)