diff --git a/README.md b/README.md
index 240734e6..75074634 100644
--- a/README.md
+++ b/README.md
@@ -28,6 +28,7 @@ jobs:
 - `github_token` (required): GitHub token for pushing to repo. See the [docs](https://git.io/passing-token) for more info.
 - `branch` (optional): Branch to deploy to. Defaults to `gh-pages`.
 - `folder` (optional): Folder where the docs are built. Defaults to `docs/html`.
+- `config_file` (optional): Path of the Doxygen configuration file. Defaults to `Doxyfile`.
 
 ## Advanced Usage
 
@@ -51,6 +52,7 @@ jobs:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           branch: gh-pages
           folder: docs/html
+          config_file: Doxyfile
 ```
 
 ## About this Action
@@ -71,10 +73,12 @@ sudo apt-get install doxygen -y
 
 ### 3. Generate Doxygen Documentation
 
-Doxygen documentation is generated by running the following command:
+Doxygen documentation is generated by running the following command.
+
+Set the `config_file` input option to change `Doxyfile` to a different filename.
 
 ```bash
-doxygen
+doxygen Doxyfile
 ```
 
 ### 4. Create .nojekyll
diff --git a/action.yml b/action.yml
index d0a65efe..87edef84 100644
--- a/action.yml
+++ b/action.yml
@@ -17,6 +17,10 @@ inputs:
     description: 'Folder where Doxygen will generate the HTML build files'
     required: true
     default: "docs/html"
+  config_file:
+    description: 'Path of the Doxygen configuration file'
+    required: true
+    default: "Doxyfile"
 
 runs:
   using: "composite"
@@ -31,7 +35,7 @@ runs:
       shell: bash
 
     - name: Generate Doxygen Documentation
-      run: doxygen
+      run: doxygen ${{ inputs.config_file }}
       shell: bash
       
     - name: Create .nojekyll (ensures pages with underscores work on gh pages)