diff --git a/os/hal/ports/STM32/STM32L0xx/stm32_registry.h b/os/hal/ports/STM32/STM32L0xx/stm32_registry.h
index 724c0638d..b6c8e87fa 100644
--- a/os/hal/ports/STM32/STM32L0xx/stm32_registry.h
+++ b/os/hal/ports/STM32/STM32L0xx/stm32_registry.h
@@ -1364,11 +1364,11 @@
 #define STM32_HAS_I2C3                      TRUE
 #define STM32_I2C3_GLOBAL_HANDLER           Vector94
 #define STM32_I2C3_GLOBAL_NUMBER            21
-#define STM32_I2C3_RX_DMA_MSK               STM32_DMA_STREAM_ID_MSK(1, 3) |\
-                                            STM32_DMA_STREAM_ID_MSK(1, 5))
+#define STM32_I2C3_RX_DMA_MSK               (STM32_DMA_STREAM_ID_MSK(1, 3) |\
+                                             STM32_DMA_STREAM_ID_MSK(1, 5))
 #define STM32_I2C3_RX_DMA_CHN               0x00E0E000
-#define STM32_I2C3_TX_DMA_MSK               STM32_DMA_STREAM_ID_MSK(1, 4) |\
-                                            STM32_DMA_STREAM_ID_MSK(1, 6))
+#define STM32_I2C3_TX_DMA_MSK               (STM32_DMA_STREAM_ID_MSK(1, 4) |\
+                                             STM32_DMA_STREAM_ID_MSK(1, 6))
 #define STM32_I2C3_TX_DMA_CHN               0x0E0E0000
 
 /* RTC attributes.*/
diff --git a/readme.txt b/readme.txt
index 4f504905e..028b26b78 100644
--- a/readme.txt
+++ b/readme.txt
@@ -141,6 +141,8 @@
 - 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 missing parenthesis in STM32L073 registry entry (bug #965)
+       (backported to 18.2.2 and 17.6.5).
 - HAL: Fixed problem with STM32 RTCv1 and GCC7 compiler (bug #964)(backported
        to 18.2.2 and 17.6.5).
 - HAL: Fixed invalid timeout calculation in hal_buffers (bug #963)(backported