diff --git a/clean_files.txt b/clean_files.txt
index 2242ef5e..cf8d082a 100644
--- a/clean_files.txt
+++ b/clean_files.txt
@@ -92,6 +92,7 @@ plugins/available/hub.plugin.bash
 plugins/available/jump.plugin.bash
 plugins/available/node.plugin.bash
 plugins/available/nodenv.plugin.bash
+plugins/available/percol.plugin.bash
 plugins/available/plenv.plugin.bash
 plugins/available/pyenv.plugin.bash
 plugins/available/rbenv.plugin.bash
diff --git a/plugins/available/percol.plugin.bash b/plugins/available/percol.plugin.bash
index cc83683e..97986ccf 100644
--- a/plugins/available/percol.plugin.bash
+++ b/plugins/available/percol.plugin.bash
@@ -16,23 +16,18 @@ about-plugin 'Search&Select history with percol'
 _command_exists percol || return
 
 if [[ ${BASH_VERSINFO[0]} -lt 4 ]]; then
-   _log_warning "You have to upgrade Bash to Bash v4.x to use the 'percol' plugin."
-   _log_warning "Your current Bash version is $BASH_VERSION."
-   return
+	_log_warning "You have to upgrade Bash to Bash v4.x to use the 'percol' plugin."
+	_log_warning "Your current Bash version is $BASH_VERSION."
+	return
 else
-    bind -x '"\C-r": _replace_by_history'
+	bind -x '"\C-r": _replace_by_history'
 fi
 
 function _replace_by_history() {
 	local HISTTIMEFORMAT= # Ensure we can parse history properly
-    if _command_exists tac
-	then
-        alias _tac=tac
-    else
-        alias _tac="tail -r"
-    fi
 	#TODO: "${histlines[@]/*( )+([[:digit:]])*( )/}"
-    local l="$(history | _tac | sed -e 's/^\ *[0-9]*\ *//' | percol --query "${READLINE_LINE:-}")"
-    READLINE_LINE="${l}"
-    READLINE_POINT=${#l}
+	local l
+	l="$(history | tail -r | sed -e 's/^\ *[0-9]*\ *//' | percol --query "${READLINE_LINE:-}")"
+	READLINE_LINE="${l}"
+	READLINE_POINT=${#l}
 }