diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/materials/entities/Material.java b/navalplanner-business/src/main/java/org/navalplanner/business/materials/entities/Material.java
index 50f415cdf..7547657ea 100644
--- a/navalplanner-business/src/main/java/org/navalplanner/business/materials/entities/Material.java
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/materials/entities/Material.java
@@ -41,7 +41,7 @@ public class Material extends IntegrationEntity implements Comparable {
 
     private UnitType unitType;
 
-    private Boolean disabled;
+    private Boolean disabled = Boolean.FALSE;
 
     private MaterialCategory category = null;