diff --git a/bin/autojump.zsh b/bin/autojump.zsh
index 92c31d7..79f7cd2 100644
--- a/bin/autojump.zsh
+++ b/bin/autojump.zsh
@@ -10,8 +10,9 @@ fi
 
 
 # set homebrew installation paths
-if command -v brew &>/dev/null && [[ -d "$(brew --prefix)/share/zsh/site-functions" ]]; then
-    fpath=("$(brew --prefix)/share/zsh/site-functions" ${fpath})
+local brew_prefix=${BREW_PREFIX:-$(brew --prefix)}
+if [[ -d "${brew_prefix}/share/zsh/site-functions" ]]; then
+    fpath=("${brew_prefix}/share/zsh/site-functions" ${fpath})
 fi