diff --git a/os/hal/ports/STM32/STM32F4xx/stm32_registry.h b/os/hal/ports/STM32/STM32F4xx/stm32_registry.h
index 6c6ddb5b1..4da2d8b88 100644
--- a/os/hal/ports/STM32/STM32F4xx/stm32_registry.h
+++ b/os/hal/ports/STM32/STM32F4xx/stm32_registry.h
@@ -1568,7 +1568,7 @@
 /* USB attributes.*/
 #define STM32_OTG_STEPPING                  2
 #define STM32_HAS_OTG1                      TRUE
-#define STM32_OTG1_ENDPOINTS                3
+#define STM32_OTG1_ENDPOINTS                5
 
 #define STM32_HAS_OTG2                      FALSE
 #define STM32_HAS_USB                       FALSE
@@ -1903,7 +1903,7 @@
 /* USB attributes.*/
 #define STM32_OTG_STEPPING                  2
 #define STM32_HAS_OTG1                      TRUE
-#define STM32_OTG1_ENDPOINTS                3
+#define STM32_OTG1_ENDPOINTS                5
 
 #define STM32_HAS_OTG2                      FALSE
 #define STM32_HAS_USB                       FALSE
diff --git a/readme.txt b/readme.txt
index 2c2f82001..c0fccd8c9 100644
--- a/readme.txt
+++ b/readme.txt
@@ -150,6 +150,8 @@
 - EX:  Updated LIS302DL to 1.1.0 (backported to 18.2.1).
 - EX:  Updated LPS25H to 1.1.0 (backported to 18.2.1).
 - EX:  Updated LSM303DLHC to 1.1.0 (backported to 18.2.1).
+- HAL: Fixed wrong number of endpoints fot STM32F412/413 (bug #978)
+       (backported to 18.2.2 and 17.6.5).
 - RT:  Fixed chEvtGetAndClearFlags(...) does not mask events (bug #977)
        (backported to 18.2.2 and 17.6.5).
 - HAL: Fixed HAL channels chnControl() macro broken (bug #976)