diff --git a/betterlockscreen b/betterlockscreen
index 807de75..17b4e43 100755
--- a/betterlockscreen
+++ b/betterlockscreen
@@ -1,9 +1,13 @@
 #!/usr/bin/env bash
 
-# Author : Pavan Jadhaw
+# Author : Copyright (c) 2017-2021 Pavan Jadhaw, and others (https://github.com/pavanjadhaw/betterlockscreen/graphs/contributors)
 # Github Profile : https://github.com/pavanjadhaw
 # Project Repository : https://github.com/pavanjadhaw/betterlockscreen
 
+cmd_exists () {
+    command -v "$1" >/dev/null
+}
+
 init_config () {
 
     # default options
@@ -18,6 +22,10 @@ init_config () {
     description=""
     i3lockcolor_bin="i3lock-color"
 
+    if ! cmd_exists "i3lockcolor_bin" && cmd_exists "i3lock"; then
+        i3lockcolor_bin="i3lock"
+    fi
+
     # default theme
     loginbox=00000066
     loginshadow=00000000
@@ -50,6 +58,11 @@ init_config () {
         source "$USER_CONF"
     fi
 
+    if ! cmd_exists "$i3lockcolor_bin"; then
+        echof error "Unable to find i3lock-color binary under detected/configured name: '$i3lockcolor_bin'!"
+        exit
+    fi
+
     # Please make sure to adjust this before release!
     VERSION="4.0.0-beta1"