diff --git a/distro/changelog.xml b/distro/changelog.xml
index f09bc6d..67941f5 100644
--- a/distro/changelog.xml
+++ b/distro/changelog.xml
@@ -1,5 +1,10 @@
 <ReleaseNotes>
-	<Changeset component="${build.finalName}" date="2013-01-11">
+	<Changeset component="discovery-client-1.0.0" date="2013-01-11">
 		<Change>First Release</Change>
 	</Changeset>
+	<Changeset component="discovery-client-1.0.1" date="2013-04-29">
+		<Change>Fixed bug in QueryBox to prevented correct working of hashcode() and equals() in subclasses.
+				As a result, different queries appeared the same with consequences downstream where queries where used for caching.
+		</Change>
+	</Changeset>
 </ReleaseNotes>
\ No newline at end of file
diff --git a/pom.xml b/pom.xml
index 069d133..9594dd5 100644
--- a/pom.xml
+++ b/pom.xml
@@ -11,7 +11,7 @@
 	
 	<groupId>org.gcube.resources.discovery</groupId>
 	<artifactId>discovery-client</artifactId>
-	<version>1.0.0-SNAPSHOT</version>
+	<version>1.0.1-SNAPSHOT</version>
 	<name>Discovery Client</name>
 	<description>Base API for resource discovery clients</description>
 
diff --git a/src/main/java/org/gcube/resources/discovery/client/queries/impl/QueryBox.java b/src/main/java/org/gcube/resources/discovery/client/queries/impl/QueryBox.java
index c78a59d..9c01d69 100644
--- a/src/main/java/org/gcube/resources/discovery/client/queries/impl/QueryBox.java
+++ b/src/main/java/org/gcube/resources/discovery/client/queries/impl/QueryBox.java
@@ -26,7 +26,7 @@ public class QueryBox implements Query {
 	public int hashCode() {
 		final int prime = 31;
 		int result = 1;
-		result = prime * result + ((expression == null) ? 0 : expression.hashCode());
+		result = prime * result + ((expression() == null) ? 0 : expression().hashCode());
 		return result;
 	}
 
@@ -39,10 +39,10 @@ public class QueryBox implements Query {
 		if (getClass() != obj.getClass())
 			return false;
 		QueryBox other = (QueryBox) obj;
-		if (expression == null) {
-			if (other.expression != null)
+		if (expression() == null) {
+			if (other.expression() != null)
 				return false;
-		} else if (!expression.equals(other.expression))
+		} else if (!expression().equals(other.expression()))
 			return false;
 		return true;
 	}
diff --git a/src/main/java/org/gcube/resources/discovery/client/queries/impl/QueryTemplate.java b/src/main/java/org/gcube/resources/discovery/client/queries/impl/QueryTemplate.java
index de3a2c3..7a3f27e 100644
--- a/src/main/java/org/gcube/resources/discovery/client/queries/impl/QueryTemplate.java
+++ b/src/main/java/org/gcube/resources/discovery/client/queries/impl/QueryTemplate.java
@@ -181,4 +181,6 @@ public class QueryTemplate extends QueryBox implements Query {
 			throw new RuntimeException("cannot replace parameters " + parameters + " in query " + expression,e);
 		}
 	}
+	
+	
 }