diff --git a/README.md b/README.md
index 7124c01..74b10c3 100644
--- a/README.md
+++ b/README.md
@@ -45,7 +45,7 @@ gem install rubocop
 
 If VSCode market place is not configured in your FLOSS distribution of code (you have Open VSX instead):
 
-1. Go on [VSCode Marketplace](https://marketplace.visualstudio.com/items?itemName=misogi.ruby-rubocop) and clic on the [Download Extension](https://marketplace.visualstudio.com/_apis/public/gallery/publishers/misogi/vsextensions/ruby-rubocop/0.8.5/vspackage) button.
+1. Go on [VSCode Marketplace](https://marketplace.visualstudio.com/items?itemName=misogi.ruby-rubocop) and click on the [Download Extension](https://marketplace.visualstudio.com/_apis/public/gallery/publishers/misogi/vsextensions/ruby-rubocop/0.8.5/vspackage) button.
 2. Install the extension manually from the CLI: `code --install-extension misogi.ruby-rubocop-0.8.5.vsix`
 
 # ChangeLog
diff --git a/src/rubocop.ts b/src/rubocop.ts
index 0a1ecd1..1888838 100644
--- a/src/rubocop.ts
+++ b/src/rubocop.ts
@@ -87,13 +87,18 @@ function getCurrentPath(fileUri: vscode.Uri): string {
 function getCommandArguments(fileName: string): string[] {
   let commandArguments = ['--stdin', fileName, '--force-exclusion'];
   const extensionConfig = getConfig();
+
   if (extensionConfig.configFilePath !== '') {
-    const found = [extensionConfig.configFilePath]
+    const expandedConfigFilePath = path.resolve(extensionConfig.configFilePath);
+
+    const found = [expandedConfigFilePath]
       .concat(
         (vscode.workspace.workspaceFolders || []).map((ws) =>
           path.join(ws.uri.path, extensionConfig.configFilePath)
         )
       )
+      // dedupe
+      .filter((v, i, a) => a.indexOf(v) === i)
       .filter((p: string) => fs.existsSync(p));
 
     if (found.length == 0) {