diff --git a/src/fb.js b/src/fb.js
old mode 100644
new mode 100755
index a686285..0179ea1
--- a/src/fb.js
+++ b/src/fb.js
@@ -1,3 +1,5 @@
+#!/usr/bin/env node
+
 for (let i = 1; i <= 100; i++) {
 	if (i % 15 == 0) {
 		console.log("FizzBuzz");
diff --git a/src/fb.lua b/src/fb.lua
index e7414f1..9b57e7d 100755
--- a/src/fb.lua
+++ b/src/fb.lua
@@ -1,3 +1,5 @@
+#!/usr/bin/env lua
+
 for i = 1, 100 do
 	if i % 15 == 0 then
 		print("FizzBuzz")
diff --git a/src/fb.php b/src/fb.php
old mode 100644
new mode 100755
index 5cdf1fd..919b7ec
--- a/src/fb.php
+++ b/src/fb.php
@@ -1,3 +1,5 @@
+#!/usr/bin/env php
+
 <?php 
 for ($i=1; $i <=100 ; $i++) { 
 	if ($i % 15 == 0) {
diff --git a/src/fb.py b/src/fb.py
old mode 100644
new mode 100755
index a09ecf2..8c787b2
--- a/src/fb.py
+++ b/src/fb.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 for i in range(1,101):
     if i % 15 == 0 :
         print("FizzBuzz")
diff --git a/src/fb.sh b/src/fb.sh
old mode 100644
new mode 100755
index 0b17f74..e6f70bc
--- a/src/fb.sh
+++ b/src/fb.sh
@@ -1,3 +1,5 @@
+#!/bin/bash
+
 for i in $(seq 1 100); do
 	if [[ $(( $i % 15 )) == 0 ]]; then
 		echo FizzBuzz