diff --git a/pom.xml b/pom.xml
index b5e7094..fe94abb 100644
--- a/pom.xml
+++ b/pom.xml
@@ -16,7 +16,7 @@
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<distroDirectory>distro</distroDirectory>
 		<serviceClass>Accounting</serviceClass>
-		
+		<maven.compiler.source>1.7</maven.compiler.source>
 	</properties>
 
 	<scm>
diff --git a/src/main/java/org/gcube/accounting/aggregator/plugin/AccountingAggregatorPlugin.java b/src/main/java/org/gcube/accounting/aggregator/plugin/AccountingAggregatorPlugin.java
index 352a5cc..c3f86aa 100644
--- a/src/main/java/org/gcube/accounting/aggregator/plugin/AccountingAggregatorPlugin.java
+++ b/src/main/java/org/gcube/accounting/aggregator/plugin/AccountingAggregatorPlugin.java
@@ -248,7 +248,7 @@ public class AccountingAggregatorPlugin extends Plugin<AccountingAggregatorPlugi
 			DateFormat df = new SimpleDateFormat ("MM/dd/yyyy HH:mm");
 			
 			endScriptTime = df.parse ((today.getMonth()+1)+"/"+today.getDate()+"/"+(today.getYear()+1900)	+" "+(String)inputs.get("endScriptTime"));
-			logger.debug("Script Run until :{}"+endScriptTime);
+			logger.debug("Script Run until :{}",endScriptTime);
 		}
 
 		do {