diff --git a/docs/runtime/bunfig.md b/docs/runtime/bunfig.md
index 0d94e6838c..3324c2c183 100644
--- a/docs/runtime/bunfig.md
+++ b/docs/runtime/bunfig.md
@@ -353,6 +353,8 @@ dryRun = false
 
 To configure the directory where Bun puts globally installed packages.
 
+Environment variable: `BUN_INSTALL_GLOBAL_DIR`
+
 ```toml
 [install]
 # where `bun install --global` installs packages
@@ -363,6 +365,8 @@ globalDir = "~/.bun/install/global"
 
 To configure the directory where Bun installs globally installed binaries and CLIs.
 
+Environment variable: `BUN_INSTALL_BIN`
+
 ```toml
 # where globally-installed package bins are linked
 globalBinDir = "~/.bun/bin"