diff --git a/bin/do_cf.py b/bin/do_cf.py
old mode 100644
new mode 100755
index eb5bc9c54..fcc0e9c09
--- a/bin/do_cf.py
+++ b/bin/do_cf.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python
+
 import scipy as sp
 import fitsio
 import argparse
diff --git a/bin/do_cf1d.py b/bin/do_cf1d.py
old mode 100644
new mode 100755
index 1cd2ff6f4..c4ccac5ea
--- a/bin/do_cf1d.py
+++ b/bin/do_cf1d.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python
+
 import scipy as sp
 import fitsio
 import argparse
diff --git a/bin/do_deltas.py b/bin/do_deltas.py
old mode 100644
new mode 100755
index c29253cb2..aece8bbfc
--- a/bin/do_deltas.py
+++ b/bin/do_deltas.py
@@ -1,3 +1,4 @@
+#!/usr/bin/env python
 
 import sys
 import fitsio
diff --git a/bin/do_dmat.py b/bin/do_dmat.py
old mode 100644
new mode 100755
index 1333fa589..d01fd3539
--- a/bin/do_dmat.py
+++ b/bin/do_dmat.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python
+
 import scipy as sp
 import fitsio
 import argparse
diff --git a/bin/do_wick.py b/bin/do_wick.py
old mode 100644
new mode 100755
index 81dd8407f..8c4f2f47a
--- a/bin/do_wick.py
+++ b/bin/do_wick.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python
+
 import scipy as sp
 import fitsio
 import argparse
diff --git a/bin/do_xMetalGrid.py b/bin/do_xMetalGrid.py
old mode 100644
new mode 100755
index 8cd885198..6ce3e480c
--- a/bin/do_xMetalGrid.py
+++ b/bin/do_xMetalGrid.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python
+
 import scipy as sp
 import fitsio
 import argparse
diff --git a/bin/do_xcf.py b/bin/do_xcf.py
old mode 100644
new mode 100755
index 7c0b57261..bebae1a95
--- a/bin/do_xcf.py
+++ b/bin/do_xcf.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python
+
 import scipy as sp
 import fitsio
 import argparse
diff --git a/bin/do_xdmat.py b/bin/do_xdmat.py
old mode 100644
new mode 100755
index 38c5ef059..eba112a70
--- a/bin/do_xdmat.py
+++ b/bin/do_xdmat.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python
+
 import scipy as sp
 import fitsio
 import argparse
diff --git a/bin/export.py b/bin/export.py
old mode 100644
new mode 100755
index 7c74a06a2..bc3543626
--- a/bin/export.py
+++ b/bin/export.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python
+
 import fitsio
 import scipy as sp
 
diff --git a/bin/export_metal.py b/bin/export_metal.py
old mode 100644
new mode 100755
index 8b12ce306..8bdee00b5
--- a/bin/export_metal.py
+++ b/bin/export_metal.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python
+
 import fitsio
 import scipy as sp