diff --git a/.github/workflows/linting.yml b/.github/workflows/lint.yml
similarity index 94%
rename from .github/workflows/linting.yml
rename to .github/workflows/lint.yml
index 1f2f7da..356a4cb 100644
--- a/.github/workflows/linting.yml
+++ b/.github/workflows/lint.yml
@@ -1,4 +1,4 @@
-name: linting
+name: lint
 
 on:
   push:
diff --git a/.github/workflows/unit-tests.yml b/.github/workflows/unit-tests.yml
index 846f5e9..63c415c 100644
--- a/.github/workflows/unit-tests.yml
+++ b/.github/workflows/unit-tests.yml
@@ -24,6 +24,5 @@ jobs:
 
     - name: Execute unit tests
       run: |
-        export TERM=xterm-256color
         $HOME/opt/bats/bin/bats test/
 
diff --git a/README.md b/README.md
index 9327def..c3585f1 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 ![GitHub release (latest SemVer)](https://img.shields.io/github/v/release/markdown-localization/mdlm-sh)
-[![linting](https://github.com/markdown-localization/mdlm-sh/workflows/linting/badge.svg)](https://github.com/markdown-localization/mdlm-sh/actions?query=workflow:linting)
+[![lint](https://github.com/markdown-localization/mdlm-sh/workflows/lint/badge.svg)](https://github.com/markdown-localization/mdlm-sh/actions?query=workflow:lint)
 [![unit-tests](https://github.com/voitau/mdlm-sh/workflows/unit-tests/badge.svg)](https://github.com/markdown-localization/mdlm-sh/actions?query=workflow:unit-tests)
 [![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/3814/badge)](https://bestpractices.coreinfrastructure.org/projects/3814)
 
diff --git a/mdlm.sh b/mdlm.sh
index 83c29d5..5478b9c 100755
--- a/mdlm.sh
+++ b/mdlm.sh
@@ -21,11 +21,23 @@ MDLM_IGNORE_END="<!-- @l10n:ignore end -->"
 
 MDLM_ADD_LINK="https://github.com/markdown-localization/markdown-localization-spec#workflow"
 
-normal=$'\e[0m'
-green=$(tput setaf 2)
-red=$(tput setaf 1)
-yellow=$(tput setaf 3)
-blue=$(tput setaf 6)
+USE_COLORS="auto"
+
+mdlm_setup_colors() {
+  if test -t 1; then
+    ncolors="$(tput colors)"
+    if [ -n "${ncolors}" ] && [ "${ncolors}" -ge 8 ]; then
+      USE_COLORS="always"
+      normal=$'\e[0m'
+      green=$(tput setaf 2)
+      red=$(tput setaf 1)
+      yellow=$(tput setaf 3)
+      blue=$(tput setaf 6)
+    else
+      USE_COLORS="never"
+    fi
+  fi
+}
 
 mdlm_echo() {
   command printf %s\\n "$*" 2>/dev/null
@@ -268,7 +280,7 @@ mdlm_update_all_headers() {
 }
 
 mdlm_original_diff() {
-  diff --color -B \
+  diff --color="${USE_COLORS}" -B \
     <(grep -v "${MDLM_HEADER}" "${2}" \
       | sed -e "/${MDLM_P_CLOSE}/,/${MDLM_P_OPEN}/d" -e "/${MDLM_P_OPEN}/d" -e "/$MDLM_IGNORE_START/,/$MDLM_IGNORE_END/d") \
     <(grep -v "${MDLM_HEADER}" "${1}" | sed -e "/${MDLM_IGNORE_START}/,/${MDLM_IGNORE_END}/d")
@@ -365,6 +377,8 @@ mdlm_help() {
 }
 
 mdlm() {
+  mdlm_setup_colors
+
   if [ $# -lt 1 ]; then
     mdlm help
     return
diff --git a/test/test-blank.bats b/test/test-blank.bats
index e84fbb1..c9824cb 100644
--- a/test/test-blank.bats
+++ b/test/test-blank.bats
@@ -9,7 +9,6 @@ teardown() {
 }
 
 @test "mdlm - with no arguments" {
-  $mdlm
   run $mdlm
   [ $status -eq 0 ]
   [ $(expr "$output" : "Markdown Localization Manager (Bash) [0-9][0-9.]*") -ne 0 ]