diff --git a/os/hal/ports/STM32/STM32L4xx+/hal_efl_lld.c b/os/hal/ports/STM32/STM32L4xx+/hal_efl_lld.c
index cccef0438..b9a7ed067 100644
--- a/os/hal/ports/STM32/STM32L4xx+/hal_efl_lld.c
+++ b/os/hal/ports/STM32/STM32L4xx+/hal_efl_lld.c
@@ -77,7 +77,7 @@ static const flash_descriptor_t efl_lld_size1[STM32_FLASH_NUMBER_OF_BANKS] = {
                            FLASH_ATTR_ECC_CAPABLE   |
                            FLASH_ATTR_ECC_ZERO_LINE_CAPABLE,
       .page_size         = STM32_FLASH_LINE_SIZE,
-      .sectors_count     = STM32_FLASH_SECTORS_TOTAL_1M,
+      .sectors_count     = (STM32_FLASH_SECTORS_TOTAL_1M * 2),
       .sectors           = NULL,
       .sectors_size      = STM32_FLASH_DUAL_SECTOR_SIZE_1M,
       .address           = (uint8_t *)FLASH_BASE,
@@ -105,7 +105,7 @@ static const flash_descriptor_t efl_lld_size2[STM32_FLASH_NUMBER_OF_BANKS] = {
                            FLASH_ATTR_ECC_CAPABLE   |
                            FLASH_ATTR_ECC_ZERO_LINE_CAPABLE,
       .page_size         = STM32_FLASH_LINE_SIZE,
-      .sectors_count     = STM32_FLASH_SECTORS_TOTAL_2M,
+      .sectors_count     = (STM32_FLASH_SECTORS_TOTAL_2M * 2),
       .sectors           = NULL,
       .sectors_size      = STM32_FLASH_DUAL_SECTOR_SIZE_2M,
       .address           = (uint8_t *)FLASH_BASE,
diff --git a/readme.txt b/readme.txt
index ca5dc03b4..ab2a52f40 100644
--- a/readme.txt
+++ b/readme.txt
@@ -74,6 +74,8 @@
 *****************************************************************************
 
 *** Next ***
+- FIX: Fixed wrong sector count in EFL driver for L4+ dual bank configuration 
+        (bug #1112)
 - NEW: Stand-alone ARMv6-M port.
 - NEW: Stand-alone ARMv7-M port.
 - NEW: Merged RT7.