diff --git a/dev/travis/before_install.sh b/dev/travis/before_install.sh
index 907964736bf0489ff9a22fcec7bcc35411035dfa..2862b23abf85efafb0fab16db098e7ac678f5798 100755
--- a/dev/travis/before_install.sh
+++ b/dev/travis/before_install.sh
@@ -4,7 +4,7 @@
 # See COPYING.txt for license details.
 
 set -e
-export PATH="$HOME/.cache/bin:$PATH"
+PATH="$HOME/.cache/bin:$PATH"
 
 # install or update composer in casher dir
 if [ "$CASHER_DIR" ]; then
diff --git a/dev/travis/before_script.sh b/dev/travis/before_script.sh
index 2127c41a129c70a13efc17018848a347d8cfa501..92c602843e73426dd3d65e3dcd8dca164410cc37 100755
--- a/dev/travis/before_script.sh
+++ b/dev/travis/before_script.sh
@@ -4,7 +4,7 @@
 # See COPYING.txt for license details.
 
 set -e
-export PATH="$HOME/.cache/bin:$PATH"
+PATH="$HOME/.cache/bin:$PATH"
 
 # mock mail
 sudo service postfix stop
diff --git a/dev/travis/script.sh b/dev/travis/script.sh
index df2bb0c29f5994f8afef86896e778f783bca08ce..437fd86eb691921b2128af28bdcdd65fa6f81353 100755
--- a/dev/travis/script.sh
+++ b/dev/travis/script.sh
@@ -4,7 +4,6 @@
 # See COPYING.txt for license details.
 
 set -e
-export PATH="~/bin:$PATH"
 
 case $TEST_SUITE in
     unit)