diff --git a/completion/available/fabric-completion.bash b/completion/available/fabric-completion.bash
index a4aa90f..7809b38 100644
--- a/completion/available/fabric-completion.bash
+++ b/completion/available/fabric-completion.bash
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Bash completion support for Fabric (http://fabfile.org/)
 #
diff --git a/completion/available/rake.completion.bash b/completion/available/rake.completion.bash
index 5793bd0..453354f 100644
--- a/completion/available/rake.completion.bash
+++ b/completion/available/rake.completion.bash
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # Bash completion support for Rake, Ruby Make.
 
 export COMP_WORDBREAKS=${COMP_WORDBREAKS/\:/}
diff --git a/completion/available/ssh.completion.bash b/completion/available/ssh.completion.bash
index ea49026..3dfd6ab 100644
--- a/completion/available/ssh.completion.bash
+++ b/completion/available/ssh.completion.bash
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # Bash completion support for ssh.
 
 export COMP_WORDBREAKS=${COMP_WORDBREAKS/\:/}
diff --git a/completion/available/tmux.completion.bash b/completion/available/tmux.completion.bash
index e8ee5e7..c872ec5 100644
--- a/completion/available/tmux.completion.bash
+++ b/completion/available/tmux.completion.bash
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # tmux completion
 # See: http://www.debian-administration.org/articles/317 for how to write more.