diff --git a/installer/pom.xml b/installer/pom.xml
index f297d2a3..8f80ba16 100644
--- a/installer/pom.xml
+++ b/installer/pom.xml
@@ -18,6 +18,13 @@
 
     <build>
         <plugins>
+            <plugin>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <source>1.7</source>
+                    <target>1.7</target>
+                </configuration>
+            </plugin>
             <plugin>
                 <artifactId>maven-install-plugin</artifactId>
                 <configuration>