diff --git a/src/main/java/org/gcube/common/clients/stubs/jaxws/proxies/MethodRetriever.java b/src/main/java/org/gcube/common/clients/stubs/jaxws/proxies/MethodRetriever.java
index 716e6fb..3802c04 100644
--- a/src/main/java/org/gcube/common/clients/stubs/jaxws/proxies/MethodRetriever.java
+++ b/src/main/java/org/gcube/common/clients/stubs/jaxws/proxies/MethodRetriever.java
@@ -24,7 +24,7 @@ public class MethodRetriever<T> implements InvocationHandler{
 		try{
 			return method.invoke(service, args);
 		}catch(IllegalAccessException | IllegalArgumentException proxyEx){
-			log.error("error invoking method "+method.getName()+" in service "+service.getClass().getCanonicalName()+" using proxy ");
+			log.error("error invoking method "+method.getName()+" in service "+service.getClass().getCanonicalName()+" using proxy ", proxyEx);
 			throw new RuntimeException(proxyEx);
 		}catch(InvocationTargetException ite){
 			log.error("exception invoking method "+method.getName()+" in service "+service.getClass().getCanonicalName()+" using proxy ");