diff --git a/aliases.sh b/aliases.sh
index 7fda5a1..4f1b471 100755
--- a/aliases.sh
+++ b/aliases.sh
@@ -6,21 +6,21 @@
 #### Easier life (MAC SPECIFIC)
 ####
 if [[ "$(uname)" == "Darwin" ]]; then
-	alias o="open"
-	alias ls="ls -G"
-	## Colorize system.log contents (with grc), and inspect with less.
-	alias console="grc cat /var/log/system.log | sort -r | less -R"
+    alias o="open"
+    alias ls="ls -G"
+    ## Colorize system.log contents (with grc), and inspect with less.
+    alias console="grc cat /var/log/system.log | sort -r | less -R"
 
-	## Quicklook shortcut
-	alias quicklook='qlmanage -px 2>/dev/null'
-	alias ql='quicklook'
+    ## Quicklook shortcut
+    alias quicklook='qlmanage -px 2>/dev/null'
+    alias ql='quicklook'
 
-	## Airport command line interface
-	alias airport='/System/Library/PrivateFrameworks/Apple80211.framework/Resources/airport'
+    ## Airport command line interface
+    alias airport='/System/Library/PrivateFrameworks/Apple80211.framework/Resources/airport'
 
-	## Flush dns cache
-	#alias dnsflushcache='sudo discoveryutil mdnsflushcache' # used to work until 10.6
-	alias dnsflushcache='sudo killall -HUP mDNSResponder' # Works up until 10.9 and after 10.10.4
+    ## Flush dns cache
+    #alias dnsflushcache='sudo discoveryutil mdnsflushcache' # used to work until 10.6
+    alias dnsflushcache='sudo killall -HUP mDNSResponder' # Works up until 10.9 and after 10.10.4
     alias lsrt='ls -G -lrt | tail -5'
 else
     alias ls='ls --color'
@@ -65,17 +65,6 @@ alias gl5='git log -n 5'
 
 alias pvim='poetry run vim'
 
-# grc: try to source the definitions file in /etc/grc.zsh (print a warning if it does not exist)
-if [[ -f /etc/grc.zsh ]] ; then
-    source /etc/grc.zsh
-elif [[ -f /usr/local/etc/grc.zsh ]] ; then
-    source /usr/local/etc/grc.zsh
-else
-    echo "Could not grc completion file (checked /etc/grc.zsh and /usr/local/etc/grc.zsh. Command colorization will not work. Check your grc configuration (is grc installed?)" 1>&2
-fi
-
-alias powerline_update="pip install --upgrade --user 'git+https://github.com/powerline/powerline.git@develop#powerline'"
-
 alias gs='git status'
 alias gcf='git commit --fixup=HEAD'
 alias gcaf='git commit -a --fixup=HEAD'
@@ -94,14 +83,14 @@ alias venv='source .venv/bin/activate'
 
 # Run fzf with file preview
 alias pf="fzf --preview='BAT_STYLE='header,changes' bat --color=always {}' --bind shift-up:preview-page-up,shift-down:preview-page-down"
-alias fgitlog="git log --oneline | fzf --multi --preview 'git -p show --color=always {+1}"
+alias fgitlog="git log --oneline | fzf --multi --preview 'git -p show --color=always {+1}'"
 
 # dotfiles user aliases
 if [[ -f ~/.dotfiles_aliases ]]; then
-	source $HOME/.dotfiles_aliases
+    source $HOME/.dotfiles_aliases
 fi
 
 # source ssh aliases
-if [[ -f $HOME/.ssh_aliases  ]]; then
+if [[ -f $HOME/.ssh_aliases ]]; then
     source $HOME/.ssh_aliases
 fi