diff --git a/.travis.yml b/.travis.yml
index c50c925c7..7e5087473 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -115,13 +115,11 @@ install:
   # Functions for custom Travis folds.
   - |
     travis_fold_start() {
-      echo -n "travis_"
-      echo "fold:start:$1"
+      travis_fold start "$1"
       travis_fold_current="$1"
     }
     travis_fold_end() {
-      echo -n "travis_"
-      echo "fold:end:$travis_fold_current"
+      travis_fold end "$travis_fold_current"
     }
     travis_run_in_fold() {
       travis_fold_start "$1"
@@ -181,12 +179,14 @@ script:
     set -ev
     if [ "$TEST_PREV_COMMITS" = 1 ] && ! [ "$TRAVIS_PULL_REQUEST" = false ]; then
       # Check each commit separately (to make git-bisect less annoying).
-      echo "Testing previous commits based on TRAVIS_COMMIT_RANGE=$TRAVIS_COMMIT_RANGE"
-      rev_list="$(git rev-list --bisect-all $TRAVIS_COMMIT_RANGE)"
+      # Fix Travis' commit range (https://github.com/travis-ci/travis-ci/issues/4596).
+      commit_range="${TRAVIS_COMMIT_RANGE/.../..}"
+      echo "Testing previous commits ($commit_range)"
+      rev_list="$(git rev-list --bisect-all $commit_range)"
       echo "rev-list: $rev_list"
-      commits="$(echo $rev_list | grep -v 'dist=0' | cut -d\  -f 1)"
-      echo "Testing commits: $commits"
-      n="$(echo commits | wc -l)"
+      commits="$(echo "$rev_list" | grep -v 'dist=0' | cut -d\  -f 1)"
+      n="$(echo "$commits" | wc -l)"
+      echo "Testing $n commits: $commits"
       i=0
       failed=
       for commit in $commits; do
diff --git a/build-utils/travis-apidoc.sh b/build-utils/travis-apidoc.sh
index 8ece46b6b..76e2e8b9f 100755
--- a/build-utils/travis-apidoc.sh
+++ b/build-utils/travis-apidoc.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/usr/bin/env bash
 #
 # Process (API) docs after a successful build on Travis (via ../.travis.yml).
 #
@@ -76,7 +76,7 @@ COMMIT_MSG="Update docs for $AWESOME_VERSION via Travis
 Last commit message:
 $LAST_COMMIT_MSG
 
-Commits: https://github.com/awesomeWM/awesome/compare/${TRAVIS_COMMIT_RANGE}
+Commits: https://github.com/awesomeWM/awesome/compare/${TRAVIS_COMMIT_RANGE/.../..}
 Build URL: https://travis-ci.org/awesomeWM/awesome/builds/${TRAVIS_BUILD_ID}"
 git commit -m "[relevant] $COMMIT_MSG"