diff --git a/action.yml b/action.yml
index 59e4372..8d6b7b5 100644
--- a/action.yml
+++ b/action.yml
@@ -2,6 +2,10 @@ name: 'Codespell with annotations'
 author: 'Peter Newman'
 description: 'Codespell with annotations for Pull Request'
 inputs:
+  builtin:
+    description: 'Comma-separated list of builtin dictionaries to include'
+    required: false
+    default: ''
   check_filenames:
     description: 'If set, check file names as well'
     required: false
@@ -10,16 +14,12 @@ inputs:
     description: 'If set, check hidden files (those starting with ".") as well'
     required: false
     default: ''
-  exclude_file:
-    description: 'File with lines that should not be checked for spelling mistakes'
+  config:
+    description: 'Path to a codespell config file'
     required: false
     default: ''
-  skip:
-    description: 'Comma-separated list of files to skip (it accepts globs as well)'
-    required: false
-    default: './.git'
-  builtin:
-    description: 'Comma-separated list of builtin dictionaries to include'
+  exclude_file:
+    description: 'File with lines that should not be checked for spelling mistakes'
     required: false
     default: ''
   ignore_words_file:
@@ -38,6 +38,10 @@ inputs:
     description: 'Path to run codespell in'
     required: false
     default: ''
+  skip:
+    description: 'Comma-separated list of files to skip (it accepts globs as well)'
+    required: false
+    default: './.git'
   only_warn:
     description: 'If set, only warn, never error'
     required: false
diff --git a/entrypoint.sh b/entrypoint.sh
index 7c3d4ed..10b5a43 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -10,6 +10,10 @@ echo "::add-matcher::${RUNNER_TEMP}/_github_workflow/codespell-matcher.json"
 # e.g. PIPESTATUS and pipestatus only work in bash/zsh respectively.
 echo "Running codespell on '${INPUT_PATH}' with the following options..."
 command_args=""
+echo "Builtin dictionaries '${INPUT_BUILTIN}'"
+if [ "x${INPUT_BUILTIN}" != "x" ]; then
+    command_args="${command_args} --builtin ${INPUT_BUILTIN}"
+fi
 echo "Check filenames? '${INPUT_CHECK_FILENAMES}'"
 if [ -n "${INPUT_CHECK_FILENAMES}" ]; then
     echo "Checking filenames"
@@ -20,18 +24,14 @@ if [ -n "${INPUT_CHECK_HIDDEN}" ]; then
     echo "Checking hidden"
     command_args="${command_args} --check-hidden"
 fi
+echo "Config '${INPUT_CONFIG}'"
+if [ "x${INPUT_CONFIG}" != "x" ]; then
+    command_args="${command_args} --config ${INPUT_CONFIG}"
+fi
 echo "Exclude file '${INPUT_EXCLUDE_FILE}'"
 if [ "x${INPUT_EXCLUDE_FILE}" != "x" ]; then
     command_args="${command_args} --exclude-file ${INPUT_EXCLUDE_FILE}"
 fi
-echo "Skipping '${INPUT_SKIP}'"
-if [ "x${INPUT_SKIP}" != "x" ]; then
-    command_args="${command_args} --skip ${INPUT_SKIP}"
-fi
-echo "Builtin dictionaries '${INPUT_BUILTIN}'"
-if [ "x${INPUT_BUILTIN}" != "x" ]; then
-    command_args="${command_args} --builtin ${INPUT_BUILTIN}"
-fi
 echo "Ignore words file '${INPUT_IGNORE_WORDS_FILE}'"
 if [ "x${INPUT_IGNORE_WORDS_FILE}" != "x" ]; then
     command_args="${command_args} --ignore-words ${INPUT_IGNORE_WORDS_FILE}"
@@ -44,6 +44,10 @@ echo "Ignore URI words list '${INPUT_URI_IGNORE_WORDS_LIST}'"
 if [ "x${INPUT_URI_IGNORE_WORDS_LIST}" != "x" ]; then
     command_args="${command_args} --uri-ignore-words-list ${INPUT_URI_IGNORE_WORDS_LIST}"
 fi
+echo "Skipping '${INPUT_SKIP}'"
+if [ "x${INPUT_SKIP}" != "x" ]; then
+    command_args="${command_args} --skip ${INPUT_SKIP}"
+fi
 echo "Resulting CLI options ${command_args}"
 exec 5>&1
 res=`{ { codespell --count ${command_args} ${INPUT_PATH}; echo $? 1>&4; } 1>&5; } 4>&1`
diff --git a/test/test.bats b/test/test.bats
index 119bc5b..80536a4 100644
--- a/test/test.bats
+++ b/test/test.bats
@@ -39,6 +39,7 @@ function setup() {
     export INPUT_EXCLUDE_FILE=""
     export INPUT_SKIP=""
     export INPUT_BUILTIN=""
+    export INPUT_CONFIG=""
     export INPUT_IGNORE_WORDS_FILE=""
     export INPUT_IGNORE_WORDS_LIST=""
     export INPUT_URI_IGNORE_WORDS_LIST=""
@@ -94,6 +95,50 @@ function setup() {
     [ "${lines[-4 - $errorCount]}" == "$errorCount" ]
 }
 
+@test "Pass an ill-formed file to INPUT_CONFIG" {
+    # codespell's exit status is 78 for a configparser.Error exception
+    expectedExitStatus=78
+    INPUT_CONFIG="./test/testdata/.badcfg"
+    run "./entrypoint.sh"
+    [ $status -eq $expectedExitStatus ]
+}
+
+@test "Pass a non-existing file to INPUT_CONFIG" {
+    errorCount=$((ROOT_MISSPELLING_COUNT + SUBFOLDER_MISSPELLING_COUNT))
+    # codespell's exit status is 0, or 65 if there are errors found
+    if [ $errorCount -eq 0 ]; then expectedExitStatus=0; else expectedExitStatus=65; fi
+    INPUT_CONFIG="./foo"
+    run "./entrypoint.sh"
+    [ $status -eq $expectedExitStatus ]
+
+    # Check output
+    [ "${lines[0]}" == "::add-matcher::${RUNNER_TEMP}/_github_workflow/codespell-matcher.json" ]
+    outputRegex="^Running codespell on '${INPUT_PATH}'"
+    [[ "${lines[1]}" =~ $outputRegex ]]
+    [ "${lines[-4 - $errorCount]}" == "$errorCount" ]
+    [ "${lines[-3]}" == "Codespell found one or more problems" ]
+    [ "${lines[-2]}" == "::remove-matcher owner=codespell-matcher-default::" ]
+    [ "${lines[-1]}" == "::remove-matcher owner=codespell-matcher-specified::" ]
+}
+
+@test "Pass a valid file to INPUT_CONFIG" {
+    errorCount=$((ROOT_MISSPELLING_COUNT + SUBFOLDER_MISSPELLING_COUNT))
+    # codespell's exit status is 0, or 65 if there are errors found
+    if [ $errorCount -eq 0 ]; then expectedExitStatus=0; else expectedExitStatus=65; fi
+    INPUT_CONFIG="./test/testdata/.goodcfg"
+    run "./entrypoint.sh"
+    [ $status -eq $expectedExitStatus ]
+
+    # Check output
+    [ "${lines[0]}" == "::add-matcher::${RUNNER_TEMP}/_github_workflow/codespell-matcher.json" ]
+    outputRegex="^Running codespell on '${INPUT_PATH}'"
+    [[ "${lines[1]}" =~ $outputRegex ]]
+    [ "${lines[-4 - $errorCount]}" == "$errorCount" ]
+    [ "${lines[-3]}" == "Codespell found one or more problems" ]
+    [ "${lines[-2]}" == "::remove-matcher owner=codespell-matcher-default::" ]
+    [ "${lines[-1]}" == "::remove-matcher owner=codespell-matcher-specified::" ]
+}
+
 @test "Use an exclude file" {
     errorCount=$((ROOT_MISSPELLING_COUNT + SUBFOLDER_MISSPELLING_COUNT - EXCLUDED_MISSPELLING_COUNT))
     # codespell's exit status is 0, or 65 if there are errors found
diff --git a/test/testdata/.badcfg b/test/testdata/.badcfg
new file mode 100644
index 0000000..e810594
--- /dev/null
+++ b/test/testdata/.badcfg
@@ -0,0 +1 @@
+foobar =
diff --git a/test/testdata/.goodcfg b/test/testdata/.goodcfg
new file mode 100644
index 0000000..60bbe06
--- /dev/null
+++ b/test/testdata/.goodcfg
@@ -0,0 +1 @@
+[codespell]