diff --git a/README.md b/README.md
index 1952399..452aa8c 100644
--- a/README.md
+++ b/README.md
@@ -85,7 +85,11 @@ $ cd git-recall
 $ sudo make install
 ```
 ## Requirements
-- Linux or OSX
+- OS: Linux or OSX
+- Tools: git, less, sed
+
+##### Optional Requirements
+- For a better UX, it's recommended to have installed the `lesskey` program.
 
 ## Contribution
 Pull requests are welcome, along with any feedback or ideas.
diff --git a/git-recall b/git-recall
index b18cd24..0e0e0e4 100644
--- a/git-recall
+++ b/git-recall
@@ -22,10 +22,11 @@ FETCH=false
 GIT_FORMAT=""
 GIT_LOG=""
 COMMITS=""
-VERSION="1.1.1"
+LESSKEY=false
+VERSION="1.1.3"
 
 # Are we in a git repo?
-if [[ ! -d ".git" ]]; then
+if [[ ! -d ".git" ]] && ! git rev-parse --git-dir &>/dev/null; then
   echo "abort: not a git repository." 1>&2
   exit 1
 fi
@@ -89,10 +90,9 @@ else
   uncolored
 fi
 
-# Check if lesskey is correctly installed.
-if ! which lesskey &>/dev/null; then
-  echo "abort: the program lesskey is not installed. Make sure to install it before running git-recall" 1>&2
-  exit 1
+# Check if lesskey is installed.
+if command -v lesskey &> /dev/null; then
+    LESSKEY=true
 fi
 
 # Set AUTHOR to current user if no param passed or display for all users if param equal to "all". 
@@ -156,11 +156,18 @@ ec="`echo -e '\e'`"   # escape
 nl="`echo -e '\n'`"   # newline
 
 # Create a temporary lesskey file to change the keybindings so the user can use the TAB key to quit less. (more convenient)  
-echo "\t quit" | lesskey -o $HOME/.lsh_less_keys_tmp -- - &> /dev/null
+if [[ $LESSKEY = true ]]; then
+    echo "\t quit" | lesskey -o $HOME/.lsh_less_keys_tmp -- - &> /dev/null
+fi
 
 ## Get commit's diff.
 function get_diff() {
-    ELT="$(echo "${COMMITS[$CP-1]}" | sed -r "s/\x1B\[([0-9]{1,2}(;[0-9]{1,2})?)?[m|K]//g")" # remove colors escape codes
+    case "$OSTYPE" in
+      darwin*) SED_BIN="sed -E" ;;
+      *)       SED_BIN="sed -r" ;;
+    esac
+
+    ELT="$(echo "${COMMITS[$CP-1]}" | $SED_BIN "s/\x1B\[([0-9]{1,2}(;[0-9]{1,2})?)?[m|K]//g")" # remove colors escape codes
     DIFF_TIP=${ELT:0:7}
     DIFF_CMD="git show $DIFF_TIP --color=always"
     DIFF=$(eval ${DIFF_CMD} 2>/dev/null)
@@ -173,7 +180,11 @@ function print_diff() {
     get_diff
 
     if [[ $(( TN + DIFF_LINES_NUMBER )) -ge $(( `tput lines` - 1 )) ]]; then
-	echo -e "$REVERSE ${COMMITS[$CP - 1]}\n\n $DIFF" | less -r -k $HOME/.lsh_less_keys_tmp
+	if [[ $LESSKEY = true ]]; then
+	    echo "$REVERSE ${COMMITS[$CP - 1]}\n\n $DIFF" | less -r -k $HOME/.lsh_less_keys_tmp
+	else 
+	    echo "$REVERSE ${COMMITS[$CP - 1]}\n\n $DIFF" | less -r
+	fi
     else 
 	stop=false
 	tput ed
@@ -299,7 +310,9 @@ do
 
 done
 
-rm $HOME/.lsh_less_keys_tmp # remove temporary less keybindings
+# remove temporary less keybindings
+[[ $LESSKEY = true ]] && rm $HOME/.lsh_less_keys_tmp 
+
 tput cnorm # unhide cursor
 echo "$NORMAL" # normal colors
 
diff --git a/package.json b/package.json
index f84d8d1..acf559d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "git-recall",
-  "version": "1.1.1",
+  "version": "1.1.3",
   "description": "Simple and convenient Git tool to easily recall what you've done",
   "main": "",
   "scripts": {