diff --git a/README.md b/README.md
index 3424fe4..6e0d0b9 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@ Using this GitHub Action, scan your code with [SonarCloud](https://sonarcloud.io
 
 <img src="./images/SonarCloud-72px.png">
 
-SonarCloud is the leading product for Continuous Code Quality & Code Security online, totally free for open-source projects. It supports all major programming languages, including Java, JavaScript, TypeScript, C#, C/C++ and many more. If your code is closed source, SonarCloud also offers a paid plan to run private analyses
+SonarCloud is the leading product for Continuous Code Quality & Code Security online, totally free for open-source projects. It supports all major programming languages, including Java, JavaScript, TypeScript, C#, C/C++ and many more. If your code is closed source, SonarCloud also offers a paid plan to run private analyses.
 
 ## Requirements
 
@@ -24,6 +24,14 @@ sonar.projectKey=<replace with the key generated when setting up the project on
 sonar.sources=.
 ```
 
+You can change the analysis base directory by using the optional input `projectBaseDir` like this:
+
+```yaml
+uses: sonarsource/sonarcloud-github-action@master
+with:
+  projectBaseDir: my-custom-directory
+```
+
 The workflow, usually declared in `.github/workflows/build.yml`, looks like:
 
 ```yaml
diff --git a/action.yml b/action.yml
index 52d19dc..24a9607 100644
--- a/action.yml
+++ b/action.yml
@@ -6,3 +6,8 @@ branding:
 runs:
   using: 'docker'
   image: 'Dockerfile'
+inputs:
+  projectBaseDir:
+    description: 'Set the sonar.projectBaseDir analysis property'
+    required: false
+    default: '.'
\ No newline at end of file
diff --git a/entrypoint.sh b/entrypoint.sh
index 4a82f55..4820677 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -29,6 +29,6 @@ if [[ -z "${SONARCLOUD_URL}" ]]; then
   SONARCLOUD_URL="https://sonarcloud.io"
 fi
 
-sonar-scanner -Dsonar.host.url=${SONARCLOUD_URL}
+sonar-scanner -Dsonar.projectBaseDir=${INPUT_PROJECTBASEDIR} -Dsonar.host.url=${SONARCLOUD_URL}