diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6e1c60b98..75318a55e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@ All notable changes to this project will be documented in this file.
 This project uses the changelog in accordance with [keepchangelog](http://keepachangelog.com/). Please use this to write notable changes, which is not the same as git commit log...
 
 ## [unreleased][unreleased]
+- Changed (extended) area accessible by spiffs into last page of FLASH (@piotrva)
 - Changed flash-stored key dictionaries (Mifare, iClass, T55XX) and T55XX configurations to SPIFFS files (@piotrva)
 - Changed `lf em 410x sim` to use default gap value of 0 and extended help (@piotrva)
 - Changed `hf 14a info` - now identifies MIAFRE Duox (@iceman1001)
diff --git a/include/pmflash.h b/include/pmflash.h
index 49e5bd9a0..79488ba5c 100644
--- a/include/pmflash.h
+++ b/include/pmflash.h
@@ -46,7 +46,7 @@
 # define FLASH_MEM_MAX_4K_SECTOR_P(p64k)  (FLASH_MEM_MAX_SIZE_P(p64k) - 4096)
 #endif
 
-#define FLASH_RESERVED_TRAILING_4K_SECTORS 10
+#define FLASH_RESERVED_TRAILING_4K_SECTORS 2
 
 #ifndef FLASH_MEM_ID_LEN
 # define FLASH_MEM_ID_LEN 8