diff --git a/firmware/flash_erase.bat b/firmware/flash_erase.bat
index aaaf09ceb3..0f5292bffd 100644
--- a/firmware/flash_erase.bat
+++ b/firmware/flash_erase.bat
@@ -1,6 +1,6 @@
 rem st-link_cli -c SWD ur -ME
-rem 0x080000 would erase both code and configuration
-rem use 0x040000 if you want to erase only configuratio
+rem 0x100000 would erase both code and configuration
+rem use 0x080000 if you want to erase only configuratio
 echo I am flash_erase.bat
 
 rem weird, it used to be much nicer with openocd 0.8.0, file location was not broken?