diff --git a/README.md b/README.md
index 489c803..0703ede 100644
--- a/README.md
+++ b/README.md
@@ -24,6 +24,14 @@ The name of the head reference. Default `${{github.sha}}`.
 
 The name of the second branch. Defaults to the `tag_name` of the latest GitHub release. *This must be a GitHub release. Git tags or branches will not work.*
 
+### `reverse`
+
+Whether the order of commits should be printed in reverse. Default: 'false'
+
+### `fetch`
+
+Whether this action should pull in all other branches and tags. Default: 'true'
+
 ## Outputs
 
 ### `changelog`
@@ -58,6 +66,25 @@ Or, if you have two specific references you want:
     base-ref: 'v0.0.1'
 ```
 
+If you want to point to a branch containing forward slashes (https://github.com/metcalfc/changelog-generator/issues/179) do the following:
+
+```yaml
+
+# let the checkout action do the fetching
+- uses: actions/checkout@v3
+  with:
+    fetch-depth: 0
+
+- name: Generate changelog
+  id: changelog
+  uses: metcalfc/changelog-generator@v4.0.1 #TODO: bump this after release
+  with:
+    myToken: ${{ secrets.GITHUB_TOKEN }}
+    head-ref: 'origin/my/branch/with/slashes' #add 'origin/` in front of your branch name
+    base-ref: 'v1.0.0'
+    fetch: false
+```
+
 ### Second block
 
 Then you can use the resulting changelog:
diff --git a/action.yml b/action.yml
index 104b689..7f75741 100644
--- a/action.yml
+++ b/action.yml
@@ -18,6 +18,10 @@ inputs:
     description: 'Git log is chronological order by default. Set to true to reverse chronological order. '
     default: 'false'
     required: false
+  fetch:
+    description: 'Whether to have this action fetch all other branches and tags'
+    default: 'true'
+    required: false
 outputs:
   changelog:
     description: 'Markdown formatted changelog'
diff --git a/changelog.sh b/changelog.sh
index 1f8f3c2..be46343 100755
--- a/changelog.sh
+++ b/changelog.sh
@@ -10,12 +10,16 @@ if [ "$4" == "true" ]; then
   extra_flags='--reverse'
 fi
 
+fetch=$5
+
 # By default a GitHub action checkout is shallow. Get all the tags, branches,
 # and history. Redirect output to standard error which we can collect in the
 # action.
-git fetch --depth=1 origin +refs/tags/*:refs/tags/* 1>&2
-git fetch --no-tags --prune --depth=1 origin +refs/heads/*:refs/remotes/origin/* 1>&2
-git fetch --prune --unshallow 1>&2
+if [ "$fetch" == "true" ]; then
+  git fetch --depth=1 origin +refs/tags/*:refs/tags/* 1>&2
+  git fetch --no-tags --prune --depth=1 origin +refs/heads/*:refs/remotes/origin/* 1>&2
+  git fetch --prune --unshallow 1>&2
+fi
 
 # if folks don't have a base ref to compare against just use the initial
 # commit. This will show all the changes since the beginning but I can't
@@ -28,7 +32,7 @@ fi
 # Bash quoting will get you. Do not quote the extra_flags. If its null
 # we want it to disappear. If you quote it, it will go to git as an ""
 # and thats not a valid arg.
-log=$(git log "${base_ref}...${head_ref}" \
+log=$(git log "${base_ref}"..."${head_ref}" \
   --pretty=format:"- [%h](http://github.com/${repo_url}/commit/%H) - %s" \
   ${extra_flags})
 
diff --git a/dist/changelog.sh b/dist/changelog.sh
index 1f8f3c2..be46343 100755
--- a/dist/changelog.sh
+++ b/dist/changelog.sh
@@ -10,12 +10,16 @@ if [ "$4" == "true" ]; then
   extra_flags='--reverse'
 fi
 
+fetch=$5
+
 # By default a GitHub action checkout is shallow. Get all the tags, branches,
 # and history. Redirect output to standard error which we can collect in the
 # action.
-git fetch --depth=1 origin +refs/tags/*:refs/tags/* 1>&2
-git fetch --no-tags --prune --depth=1 origin +refs/heads/*:refs/remotes/origin/* 1>&2
-git fetch --prune --unshallow 1>&2
+if [ "$fetch" == "true" ]; then
+  git fetch --depth=1 origin +refs/tags/*:refs/tags/* 1>&2
+  git fetch --no-tags --prune --depth=1 origin +refs/heads/*:refs/remotes/origin/* 1>&2
+  git fetch --prune --unshallow 1>&2
+fi
 
 # if folks don't have a base ref to compare against just use the initial
 # commit. This will show all the changes since the beginning but I can't
@@ -28,7 +32,7 @@ fi
 # Bash quoting will get you. Do not quote the extra_flags. If its null
 # we want it to disappear. If you quote it, it will go to git as an ""
 # and thats not a valid arg.
-log=$(git log "${base_ref}...${head_ref}" \
+log=$(git log "${base_ref}"..."${head_ref}" \
   --pretty=format:"- [%h](http://github.com/${repo_url}/commit/%H) - %s" \
   ${extra_flags})
 
diff --git a/dist/index.js b/dist/index.js
index 79a0ddc..f8bdd7f 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -11641,9 +11641,10 @@ async function run() {
     var baseRef = (0,_actions_core__WEBPACK_IMPORTED_MODULE_0__.getInput)('base-ref')
     const myToken = (0,_actions_core__WEBPACK_IMPORTED_MODULE_0__.getInput)('myToken')
     const reverse = (0,_actions_core__WEBPACK_IMPORTED_MODULE_0__.getInput)('reverse')
+    const fetch = (0,_actions_core__WEBPACK_IMPORTED_MODULE_0__.getInput)('fetch')
     const octokit = new _actions_github__WEBPACK_IMPORTED_MODULE_2__.getOctokit(myToken)
     const { owner, repo } = _actions_github__WEBPACK_IMPORTED_MODULE_2__.context.repo
-    const regexp = /^[.A-Za-z0-9_-]*$/
+    const regexp = /^[.A-Za-z0-9_/-]*$/
 
     if (!headRef) {
       headRef = _actions_github__WEBPACK_IMPORTED_MODULE_2__.context.sha
@@ -11672,10 +11673,10 @@ async function run() {
       regexp.test(headRef) &&
       regexp.test(baseRef)
     ) {
-      getChangelog(headRef, baseRef, owner + '/' + repo, reverse)
+      getChangelog(headRef, baseRef, owner + '/' + repo, reverse, fetch)
     } else {
       (0,_actions_core__WEBPACK_IMPORTED_MODULE_0__.setFailed)(
-        'Branch names must contain only numbers, strings, underscores, periods, and dashes.'
+        'Branch names must contain only numbers, strings, underscores, periods, forward slashes, and dashes.'
       )
     }
   } catch (error) {
@@ -11683,7 +11684,7 @@ async function run() {
   }
 }
 
-async function getChangelog(headRef, baseRef, repoName, reverse) {
+async function getChangelog(headRef, baseRef, repoName, reverse, fetch) {
   try {
     let output = ''
     let err = ''
@@ -11702,7 +11703,7 @@ async function getChangelog(headRef, baseRef, repoName, reverse) {
 
     await (0,_actions_exec__WEBPACK_IMPORTED_MODULE_1__.exec)(
       __nccwpck_require__.ab + "changelog.sh",
-      [headRef, baseRef, repoName, reverse],
+      [headRef, baseRef, repoName, reverse, fetch],
       options
     )
 
diff --git a/index.js b/index.js
index b17fefc..1a829d3 100644
--- a/index.js
+++ b/index.js
@@ -10,9 +10,10 @@ async function run() {
     var baseRef = getInput('base-ref')
     const myToken = getInput('myToken')
     const reverse = getInput('reverse')
+    const fetch = getInput('fetch')
     const octokit = new getOctokit(myToken)
     const { owner, repo } = context.repo
-    const regexp = /^[.A-Za-z0-9_-]*$/
+    const regexp = /^[.A-Za-z0-9_/-]*$/
 
     if (!headRef) {
       headRef = context.sha
@@ -41,10 +42,10 @@ async function run() {
       regexp.test(headRef) &&
       regexp.test(baseRef)
     ) {
-      getChangelog(headRef, baseRef, owner + '/' + repo, reverse)
+      getChangelog(headRef, baseRef, owner + '/' + repo, reverse, fetch)
     } else {
       setFailed(
-        'Branch names must contain only numbers, strings, underscores, periods, and dashes.'
+        'Branch names must contain only numbers, strings, underscores, periods, forward slashes, and dashes.'
       )
     }
   } catch (error) {
@@ -52,7 +53,7 @@ async function run() {
   }
 }
 
-async function getChangelog(headRef, baseRef, repoName, reverse) {
+async function getChangelog(headRef, baseRef, repoName, reverse, fetch) {
   try {
     let output = ''
     let err = ''
@@ -71,7 +72,7 @@ async function getChangelog(headRef, baseRef, repoName, reverse) {
 
     await _exec(
       `${src}/changelog.sh`,
-      [headRef, baseRef, repoName, reverse],
+      [headRef, baseRef, repoName, reverse, fetch],
       options
     )