diff --git a/src/main/java/org/gcube/portlets/user/workspace/server/GWTWorkspaceServiceImpl.java b/src/main/java/org/gcube/portlets/user/workspace/server/GWTWorkspaceServiceImpl.java
index 3387cfc..a1aa1c4 100644
--- a/src/main/java/org/gcube/portlets/user/workspace/server/GWTWorkspaceServiceImpl.java
+++ b/src/main/java/org/gcube/portlets/user/workspace/server/GWTWorkspaceServiceImpl.java
@@ -2930,6 +2930,7 @@ public class GWTWorkspaceServiceImpl extends RemoteServiceServlet implements GWT
 				return reportValidation;
 
 			} catch (Exception e) {
+				workspaceLogger.error("Error on setting ACLs", e);
 				throw new Exception("Sorry, an error occurred when validating ACL assignment, try again later");
 			}
 		}else