diff --git a/src/main/java/org/gcube/informationsystem/resourceregistry/api/contexts/ContextCache.java b/src/main/java/org/gcube/informationsystem/resourceregistry/api/contexts/ContextCache.java
index 9612921..41b1472 100644
--- a/src/main/java/org/gcube/informationsystem/resourceregistry/api/contexts/ContextCache.java
+++ b/src/main/java/org/gcube/informationsystem/resourceregistry/api/contexts/ContextCache.java
@@ -89,7 +89,7 @@ public class ContextCache {
 		if((now.after(expiringTime) || (contexts==null)) && contextCacheRenewal!=null) {
 			try {
 				List<Context> contexts = contextCacheRenewal.renew();
-				singleton.cleanCache(now);
+				cleanCache(now);
 				setContexts(contexts);
 			} catch (ResourceRegistryException  e) {
 				logger.error("Unable to refresh Cache", e);