diff --git a/.travis.yml b/.travis.yml
index 07e8006aa9ab..77881dbc492c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,6 +9,8 @@ matrix:
         - os: linux
           sudo: required
           dist: trusty
+          before_script:
+              - sudo mount -o remount,exec,size=2G,mode=755 /run/user
           script: ./maintainers/scripts/travis-nox-review-pr.sh pr
         - os: osx
           osx_image: xcode7.3
diff --git a/maintainers/scripts/travis-nox-review-pr.sh b/maintainers/scripts/travis-nox-review-pr.sh
index 386868301a25..5b25e4f37c14 100755
--- a/maintainers/scripts/travis-nox-review-pr.sh
+++ b/maintainers/scripts/travis-nox-review-pr.sh
@@ -55,7 +55,7 @@ while test -n "$1"; do
                     token="--token $GITHUB_TOKEN"
                 fi
 
-                nix-shell --packages nox git --run "nox-review pr --slug $TRAVIS_REPO_SLUG $token $TRAVIS_PULL_REQUEST" -I nixpkgs=$TRAVIS_BUILD_DIR
+                nix-shell --packages nox git --run "nox-review pr --slug $TRAVIS_REPO_SLUG $token $TRAVIS_PULL_REQUEST"
             fi
             ;;