diff --git a/os/hal/ports/STM32/STM32F4xx/stm32_registry.h b/os/hal/ports/STM32/STM32F4xx/stm32_registry.h
index d1128a4eb..a9a3e4721 100644
--- a/os/hal/ports/STM32/STM32F4xx/stm32_registry.h
+++ b/os/hal/ports/STM32/STM32F4xx/stm32_registry.h
@@ -376,7 +376,7 @@
 #define STM32_HAS_OTG1                      TRUE
 #define STM32_OTG1_ENDPOINTS                6
 #define STM32_HAS_OTG2                      TRUE
-#define STM32_OTG2_ENDPOINTS                8
+#define STM32_OTG2_ENDPOINTS                7
 
 #define STM32_HAS_USB                       FALSE
 
diff --git a/readme.txt b/readme.txt
index f50795469..587209cbd 100644
--- a/readme.txt
+++ b/readme.txt
@@ -73,6 +73,7 @@
 *****************************************************************************
 
 *** 16.1.8 ***
+- HAL: Fixed STM32 OTGv1 number of endpoints (bug #833).
 - HAL: Fixed transaction end problem with STM32 OTGv1 driver (bug #832).
 - HAL: Fixed wrong comment in STM32F7 mcuconf (bug #830).
 - RT:  Fixed race condition in chBMReset() (bug #828).