diff --git a/org.adempiere.base/src/org/compiere/model/PO.java b/org.adempiere.base/src/org/compiere/model/PO.java
index 93e76913d2..7eb44df8b9 100644
--- a/org.adempiere.base/src/org/compiere/model/PO.java
+++ b/org.adempiere.base/src/org/compiere/model/PO.java
@@ -3938,6 +3938,14 @@ public abstract class PO
 		int id = get_ID();
 		if (id == 0)
 			id = get_IDOld();
+		
+		// IDEMPIERE-2453
+		StringBuilder countSql = new StringBuilder("SELECT COUNT(*) FROM ")
+			.append(MTree_Base.getNodeTableName(treeType))
+			.append(" WHERE Parent_ID=?");
+		if(DB.getSQLValue( get_TrxName(), countSql.toString(), id) > 0)
+			throw new AdempiereException("CannotDeleteParent");
+		
 		StringBuilder sb = new StringBuilder ("DELETE FROM ")
 			.append(MTree_Base.getNodeTableName(treeType))
 			.append(" n WHERE Node_ID=").append(id)