diff --git a/.config/zsh/alias.zsh b/.config/zsh/alias.zsh
index 868ac64..964934e 100644
--- a/.config/zsh/alias.zsh
+++ b/.config/zsh/alias.zsh
@@ -9,6 +9,7 @@ alias gdb='gdb -q'
 alias ncmpcpp='ncmpcpp -c ~/.config/ncmpcpp/config'
 alias weechat='weechat -d ~/.config/weechat'
 
+alias grep='grep --color=auto'
 alias df='df -h'
 alias du='du -h'
 alias cp='cp -iv'
diff --git a/.pam_environment b/.pam_environment
index 6a71e47..0dbb6ac 100644
--- a/.pam_environment
+++ b/.pam_environment
@@ -6,7 +6,6 @@ VISUAL=vim
 PAGER=less
 GCC_COLORS=-
 GREP_COLORS=mt=01;32
-GREP_OPTIONS=--color=auto
 LESS=-R
 TERMINAL=termite
 GZIP=-9