diff --git a/os/hal/ports/STM32/STM32L0xx/hal_lld.h b/os/hal/ports/STM32/STM32L0xx/hal_lld.h
index bd295856b..843e66dff 100644
--- a/os/hal/ports/STM32/STM32L0xx/hal_lld.h
+++ b/os/hal/ports/STM32/STM32L0xx/hal_lld.h
@@ -273,9 +273,9 @@
 #define STM32_LPTIM1SEL_HSI16   (2 << 18)   /**< LPTIM1 clock is HSI16.     */
 #define STM32_LPTIM1SEL_LSE     (3 << 18)   /**< LPTIM1 clock is LSE.       */
 
-#define STM32_HSI48SEL_MASK     (1 << 27)   /**< HSI48SEL clock source mask.*/
-#define STM32_HSI48SEL_USBPLL   (0 << 27)   /**< USB48 clock is PLL/2.      */
-#define STM32_HSI48SEL_HSI48    (1 << 27)   /**< USB48 clock is HSI48.      */
+#define STM32_HSI48SEL_MASK     (1 << 26)   /**< HSI48SEL clock source mask.*/
+#define STM32_HSI48SEL_USBPLL   (0 << 26)   /**< USB48 clock is PLL/2.      */
+#define STM32_HSI48SEL_HSI48    (1 << 26)   /**< USB48 clock is HSI48.      */
 /** @} */
 
 /*===========================================================================*/
diff --git a/readme.txt b/readme.txt
index f3b5dd7d0..eed9540d3 100644
--- a/readme.txt
+++ b/readme.txt
@@ -123,6 +123,8 @@
 - RT:  Merged RT4.
 - NIL: Merged NIL2.
 - NIL: Added STM32F7 demo.
+- HAL: Fixed wrong bit mask in STM32L0xx port (bug #769) (backported to 16.1.6)
+       (bug #768)(backported to 16.1.6).
 - HAL: Fixed potential wait states problem in STM32L4 initialization code
        (bug #768)(backported to 16.1.6).
 - HAL: Fixed SDIO driver not compiling on STM32F446 devices (bug #767)