diff --git a/mustang/pom.xml b/mustang/pom.xml
index 404aee03..1f6f1b7b 100644
--- a/mustang/pom.xml
+++ b/mustang/pom.xml
@@ -14,14 +14,27 @@
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
   </properties>
 
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <version>2.3.2</version>
+        <configuration>
+          <source>1.5</source>
+          <target>1.5</target>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
   <dependencies>
-  
-	<dependency>
-		<groupId>org.apache.pdfbox</groupId>
-		<artifactId>pdfbox</artifactId>
-		<version>2.0.0-SNAPSHOT</version>
-		<scope>compile</scope>
-	</dependency>
+   
+    <dependency>
+      <groupId>org.apache.pdfbox</groupId>
+      <artifactId>pdfbox</artifactId>
+      <version>2.0.0-SNAPSHOT</version>
+      <scope>compile</scope>
+    </dependency>
 
     <dependency>
       <groupId>junit</groupId>