diff --git a/src/001/p001.lua b/src/001/p001.lua
index f4a7e68..121f8bd 100644
--- a/src/001/p001.lua
+++ b/src/001/p001.lua
@@ -1,4 +1,3 @@
-#!/usr/bin/env lua
 function solve()
   local sum = 0
   for i=1, 1000 do
diff --git a/src/002/p002.lua b/src/002/p002.lua
index b2a3202..a571cb1 100644
--- a/src/002/p002.lua
+++ b/src/002/p002.lua
@@ -1,4 +1,3 @@
-#!/usr/bin/env lua
 function sum_even_fibs_below(limit)
   local sum = 0
   local a = 1
diff --git a/src/003/p003.lua b/src/003/p003.lua
index 2e7db29..e72051a 100755
--- a/src/003/p003.lua
+++ b/src/003/p003.lua
@@ -1,4 +1,3 @@
-#!/usr/bin/env lua
 function solve()
   local n = 600851475143
   local limit = n / 2
diff --git a/src/004/p004.lua b/src/004/p004.lua
index c1c2c77..825374a 100755
--- a/src/004/p004.lua
+++ b/src/004/p004.lua
@@ -1,4 +1,3 @@
-#!/usr/bin/env lua
 function is_palindrome(n)
   local str = tostring(n)
   return str == string.reverse(str)
diff --git a/src/005/p005.lua b/src/005/p005.lua
index 5c12815..c879e1a 100644
--- a/src/005/p005.lua
+++ b/src/005/p005.lua
@@ -1,4 +1,3 @@
-#!/usr/bin/env lua
 function gcd(a, b)
   while b > 0 do
     local mod = a % b
diff --git a/src/009/p009.lua b/src/009/p009.lua
index cf33abd..e723d5c 100755
--- a/src/009/p009.lua
+++ b/src/009/p009.lua
@@ -1,4 +1,3 @@
-#!/usr/bin/env lua
 function solve()
   local product = 1
   for a=0, 500 do
diff --git a/src/015/p015.lua b/src/015/p015.lua
index f6175d8..df98582 100644
--- a/src/015/p015.lua
+++ b/src/015/p015.lua
@@ -1,4 +1,3 @@
-#!/usr/bin/env lua
 function combination(n, k)
   local c = 1
   for i=0, k-1 do
diff --git a/src/016/p016.lua b/src/016/p016.lua
index cbc4562..6722706 100644
--- a/src/016/p016.lua
+++ b/src/016/p016.lua
@@ -1,4 +1,3 @@
-#!/usr/bin/env lua
 function solve()
   local str = string.format("%.0f", 2 ^ 1000)
   local sum = 0
diff --git a/src/028/p028.lua b/src/028/p028.lua
index 502ee61..c15cca8 100644
--- a/src/028/p028.lua
+++ b/src/028/p028.lua
@@ -1,4 +1,3 @@
-#!/usr/bin/env lua
 function solve()
   local sum = 1
   for i=3, 1001, 2 do
diff --git a/src/036/p036.lua b/src/036/p036.lua
index db3805f..2afe673 100644
--- a/src/036/p036.lua
+++ b/src/036/p036.lua
@@ -1,4 +1,3 @@
-function palindrome(n)
   local str = tostring(n)
   return str == string.reverse(str)
 end