diff --git a/site/docs/build/index.md b/site/docs/build/index.md
index af86c78..568982b 100644
--- a/site/docs/build/index.md
+++ b/site/docs/build/index.md
@@ -31,7 +31,7 @@ Environmental variables
 Please read about environmental variables in [the build
 instructions](../maintain/), before running lbmk. You should set
 your variables accordingly, though you do not technically need to; some
-of them may be useful, e.g. `LBMK_THREADS` (sets the number of build threads).
+of them may be useful, e.g. `CBMK_THREADS` (sets the number of build threads).
 
 Sources
 =======
diff --git a/site/docs/maintain/index.md b/site/docs/maintain/index.md
index a6e36dc..c62cb6f 100644
--- a/site/docs/maintain/index.md
+++ b/site/docs/maintain/index.md
@@ -1136,17 +1136,6 @@ When the ROM is finished compiling, it will appear under a directory in `bin/`
 This script is the beating heart of Canoeboot. Break it, and you break
 Canoeboot!
 
-### script/build/grub
-
-This builds the `grub.elf` file and keymap configuration files, placing these
-under `elf/grub/` for use by `script/build/roms`.
-
-Command: `./build grub`
-
-This builds the `grub-mkstandalone` utility under `src/grub/`, which is used
-by `script/build/roms` to insert GRUB payloads inside coreboot ROM
-images.
-
 ### script/build/serprog
 
 Build firmware images for serprog-based SPI programmers, where they use an