diff --git a/structr-core/src/main/java/org/structr/core/entity/Principal.java b/structr-core/src/main/java/org/structr/core/entity/Principal.java
index <HASH>..<HASH> 100644
--- a/structr-core/src/main/java/org/structr/core/entity/Principal.java
+++ b/structr-core/src/main/java/org/structr/core/entity/Principal.java
@@ -74,7 +74,6 @@ public interface Principal extends NodeInterface, AccessControllable {
 		boolean valid = true;
 
 		valid &= ValidationHelper.isValidStringNotBlank(this, name, errorBuffer);
-		valid &= ValidationHelper.isValidUniqueProperty(this, name, errorBuffer);
 		valid &= ValidationHelper.isValidUniqueProperty(this, eMail, errorBuffer);
 
 		return valid;
Removes uniqueness constraint on name property of class Principal.