diff --git a/boards/arduino-mega2560/dist/debug.sh b/boards/arduino-mega2560/dist/debug.sh
index ddeca9ff2..0b10852f2 100755
--- a/boards/arduino-mega2560/dist/debug.sh
+++ b/boards/arduino-mega2560/dist/debug.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 sleep 2
 setsid -w avarice $1 &
 #sleep 2 && $2/avr-gdb-wrapper -ex "target remote localhost:$3" $4
diff --git a/boards/arduino-mega2560/dist/debug_srv.sh b/boards/arduino-mega2560/dist/debug_srv.sh
index 449651afb..8e7de053a 100755
--- a/boards/arduino-mega2560/dist/debug_srv.sh
+++ b/boards/arduino-mega2560/dist/debug_srv.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 sleep 2
 avarice $1
diff --git a/boards/msba2-common/tools/flashutil.sh b/boards/msba2-common/tools/flashutil.sh
index c91c5f186..517ed3ade 100755
--- a/boards/msba2-common/tools/flashutil.sh
+++ b/boards/msba2-common/tools/flashutil.sh
@@ -1,4 +1,4 @@
-#/bin/bash
+#/usr/bin/env bash
 
 linux_checkid() {
     udevinfo -a -n ${1} | grep -q "ATTRS{product}==\"${2}\""
diff --git a/boards/pttu/tools/openocd-pttu.sh b/boards/pttu/tools/openocd-pttu.sh
index 6a7da2196..572294fee 100755
--- a/boards/pttu/tools/openocd-pttu.sh
+++ b/boards/pttu/tools/openocd-pttu.sh
@@ -1,4 +1,4 @@
-#/bin/bash
+#/usr/bin/env bash
 
 if [ $# -le 0 ]; then
     echo "usage: $0 [openocd interface name] [openocd args]" >&2
diff --git a/boards/x86-multiboot-common/dist/link b/boards/x86-multiboot-common/dist/link
index 06bda0ce8..048a8c305 100755
--- a/boards/x86-multiboot-common/dist/link
+++ b/boards/x86-multiboot-common/dist/link
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 args=($@)
 
diff --git a/dist/tools/drone-scripts/build_and_test.sh b/dist/tools/drone-scripts/build_and_test.sh
index 7f0071755..93eb1d052 100755
--- a/dist/tools/drone-scripts/build_and_test.sh
+++ b/dist/tools/drone-scripts/build_and_test.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # Copyright (C) 2015 Eistec AB
 #
 # This file is subject to the terms and conditions of the GNU Lesser General
diff --git a/dist/tools/eclipsesym/cmdline2xml.sh b/dist/tools/eclipsesym/cmdline2xml.sh
index 05833c241..731f751f6 100755
--- a/dist/tools/eclipsesym/cmdline2xml.sh
+++ b/dist/tools/eclipsesym/cmdline2xml.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Copyright (C) 2015 Eistec AB
 #
diff --git a/dist/tools/pr_check/check_labels.sh b/dist/tools/pr_check/check_labels.sh
index fe806db57..dbf2c07c6 100644
--- a/dist/tools/pr_check/check_labels.sh
+++ b/dist/tools/pr_check/check_labels.sh
@@ -1,4 +1,4 @@
-#! /bin/bash
+#!/usr/bin/env bash
 #
 # Copyright (C) 2014 Martine Lenders <mlenders@inf.fu-berlin.de>
 #
diff --git a/dist/tools/pr_check/pr_check.sh b/dist/tools/pr_check/pr_check.sh
index feba443cf..69cb50c88 100755
--- a/dist/tools/pr_check/pr_check.sh
+++ b/dist/tools/pr_check/pr_check.sh
@@ -1,4 +1,4 @@
-#! /bin/bash
+#!/usr/bin/env bash
 #
 # Copyright (C) 2014 Martine Lenders <mlenders@inf.fu-berlin.de>
 #
diff --git a/dist/tools/testsuite/build_and_generate_html.sh b/dist/tools/testsuite/build_and_generate_html.sh
index 9a23008ad..f4cfab844 100755
--- a/dist/tools/testsuite/build_and_generate_html.sh
+++ b/dist/tools/testsuite/build_and_generate_html.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 test -f ~/.buildbot && . ~/.buildbot
 
diff --git a/dist/tools/testsuite/generate_html.sh b/dist/tools/testsuite/generate_html.sh
index 6f80ca76b..1357baf6f 100755
--- a/dist/tools/testsuite/generate_html.sh
+++ b/dist/tools/testsuite/generate_html.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 ROOT=${ROOT:-.}
 TOOLROOT=${TOOLROOT:-${ROOT}}
diff --git a/dist/tools/testsuite/parse_buildlog.sh b/dist/tools/testsuite/parse_buildlog.sh
index bc1bcdeef..e8cce8ffe 100755
--- a/dist/tools/testsuite/parse_buildlog.sh
+++ b/dist/tools/testsuite/parse_buildlog.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 LOG=${1}
 
diff --git a/dist/tools/testsuite/run_tests.sh b/dist/tools/testsuite/run_tests.sh
index 993b40432..7f6e718d1 100755
--- a/dist/tools/testsuite/run_tests.sh
+++ b/dist/tools/testsuite/run_tests.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 TOOLROOT=${TOOLROOT:-.}
 
diff --git a/dist/tools/toolchains/build_gnuarm.sh b/dist/tools/toolchains/build_gnuarm.sh
index c19e657f8..2ce56e444 100755
--- a/dist/tools/toolchains/build_gnuarm.sh
+++ b/dist/tools/toolchains/build_gnuarm.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # directory to install compiled binaries into
 PREFIX=${HOME}/gnuarm
diff --git a/dist/tools/toolchains/build_gnuarm_naked.sh b/dist/tools/toolchains/build_gnuarm_naked.sh
index 3eb583641..8309f2a0e 100755
--- a/dist/tools/toolchains/build_gnuarm_naked.sh
+++ b/dist/tools/toolchains/build_gnuarm_naked.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # directory to install compiled binaries into
 PREFIX=${HOME}/gnuarm-naked
diff --git a/dist/tools/toolchains/build_x86.sh b/dist/tools/toolchains/build_x86.sh
index e55b374f2..3e417b38b 100755
--- a/dist/tools/toolchains/build_x86.sh
+++ b/dist/tools/toolchains/build_x86.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # directory to download source files and store intermediates
 [[ -z $TARGET ]] && TARGET=i586-none-elf
diff --git a/dist/tools/travis-scripts/build_and_test.sh b/dist/tools/travis-scripts/build_and_test.sh
index 7ead89458..840cb929d 100755
--- a/dist/tools/travis-scripts/build_and_test.sh
+++ b/dist/tools/travis-scripts/build_and_test.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Copyright (C) 2015 Philipp Rosenkranz <philipp.rosenkranz@fu-berlin.de>
 #
diff --git a/dist/tools/usb-serial/find-tty.sh b/dist/tools/usb-serial/find-tty.sh
index aec2b1d7f..ee02c22b5 100755
--- a/dist/tools/usb-serial/find-tty.sh
+++ b/dist/tools/usb-serial/find-tty.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 #
 # Copyright (C) 2015 Eistec AB
diff --git a/pkg/libfixmath/checkout.sh b/pkg/libfixmath/checkout.sh
index 68a6483fe..4578af79a 100755
--- a/pkg/libfixmath/checkout.sh
+++ b/pkg/libfixmath/checkout.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 if [ -z "${CHECKOUT_FOLDER}" ]; then
     echo 'export CHECKOUT_FOLDER before running this script' >&2
diff --git a/pkg/libfixmath/perform-svn-checkout.sh b/pkg/libfixmath/perform-svn-checkout.sh
index dff3c2b90..426a42733 100755
--- a/pkg/libfixmath/perform-svn-checkout.sh
+++ b/pkg/libfixmath/perform-svn-checkout.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 if [ -z "${PKG_URL}" ]; then
     echo 'export PKG_URL before running this script' >&2
     exit 2