diff --git a/documentation/geek-faq.md b/documentation/geek-faq.md
index 589b6735ae..0666276ae7 100644
--- a/documentation/geek-faq.md
+++ b/documentation/geek-faq.md
@@ -56,7 +56,7 @@ Run the script
 - **FORCE_USE_RAMDISK** (yes|no): overrides autodetect for using tmpfs in new debootstrap and image creation process. Takes effect only if `EXPERIMENTAL_DEBOOTSTRAP` is set to "yes"
 - **FIXED_IMAGE_SIZE** (integer): create image file of this size (in megabytes) instead of minimal. Takes effect only if `EXPERIMENTAL_DEBOOTSTRAP` is set to "yes"
 - **COMPRESS_OUTPUTIMAGE** (**yes**|no): create zip archive with image file and GPG signature for redistribution.
-- **USE_F2FS_ROOT** (yes|**no**): create ZIP archive of RAW image. Takes effect only if `EXPERIMENTAL_DEBOOTSTRAP` is set to "yes"
+- **USE_F2FS_ROOT** (yes|**no**): create image with [F2FS](https://en.wikipedia.org/wiki/F2FS) root filesystem instead of default ext4. Requires mainline kernel for Allwinner devices. Requires setting FIXED_IMAGE_SIZE to actual size of your SD card. Takes effect only if `EXPERIMENTAL_DEBOOTSTRAP` is set to "yes"
 
 ### Supplying options via command line parameters
 Instead of editing compile.sh to set options, you can set them by supplying command line parameters to compile.sh