diff --git a/src/main/java/org/gcube/dataanalysis/ecoengine/configuration/AlgorithmConfiguration.java b/src/main/java/org/gcube/dataanalysis/ecoengine/configuration/AlgorithmConfiguration.java
index 2766e2d..b047047 100644
--- a/src/main/java/org/gcube/dataanalysis/ecoengine/configuration/AlgorithmConfiguration.java
+++ b/src/main/java/org/gcube/dataanalysis/ecoengine/configuration/AlgorithmConfiguration.java
@@ -79,7 +79,7 @@ public class AlgorithmConfiguration extends LexicalEngineConfiguration implement
 	private String remoteCalculatorEndpoint;
 	private String serviceUserName;
 	private String remoteEnvironment;
-	private Integer numberOfResources;
+	private Integer numberOfResources = 0;
 
 	//modeling
 	private String model;