diff --git a/src/main/java/org/gcube/informationsystem/types/impl/properties/PropertyDefinitionImpl.java b/src/main/java/org/gcube/informationsystem/types/impl/properties/PropertyDefinitionImpl.java
index d6d3d5b..ffda200 100644
--- a/src/main/java/org/gcube/informationsystem/types/impl/properties/PropertyDefinitionImpl.java
+++ b/src/main/java/org/gcube/informationsystem/types/impl/properties/PropertyDefinitionImpl.java
@@ -70,8 +70,12 @@ public final class PropertyDefinitionImpl implements PropertyDefinition {
 		this.mandatory= propertyAnnotation.mandatory();
 		this.notnull = !propertyAnnotation.nullable();
 		this.readonly = propertyAnnotation.readonly();
-		if(propertyAnnotation.max()>0) this.max = propertyAnnotation.max();
-		if(propertyAnnotation.max()>=propertyAnnotation.min() && propertyAnnotation.min()>0) this.min = propertyAnnotation.min();
+		if(propertyAnnotation.max()>0) { 
+			this.max = propertyAnnotation.max();
+		}
+		if(propertyAnnotation.max()>=propertyAnnotation.min() && propertyAnnotation.min()>0) {
+			this.min = propertyAnnotation.min();
+		}
 		
 		this.propertyTypeName = new PropertyTypeName(method);