diff --git a/README.md b/README.md
index 6648bd7..e733f27 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ PHP class for two-factor authorization using [TOTP](http://en.wikipedia.org/wiki
 
 ## Usage
 
-*TODO* For now: see index.php
+*TODO* For now: see demo.php
 
 ## License
 
diff --git a/TwoFactorAuth.phpproj b/TwoFactorAuth.phpproj
index acd7597..5ba0e7b 100644
--- a/TwoFactorAuth.phpproj
+++ b/TwoFactorAuth.phpproj
@@ -22,7 +22,7 @@
     <IncludeDebugInformation>false</IncludeDebugInformation>
   </PropertyGroup>
   <ItemGroup>
-    <Compile Include="index.php" />
+    <Compile Include="demo.php" />
     <Compile Include="src\TwoFactorAuth.php" />
     <Compile Include=".gitignore" />
     <Compile Include="README.md" />
diff --git a/index.php b/demo.php
similarity index 100%
rename from index.php
rename to demo.php