diff --git a/org.adempiere.base/src/org/compiere/model/MRole.java b/org.adempiere.base/src/org/compiere/model/MRole.java
index b6f6f3b0b2..9eac524285 100644
--- a/org.adempiere.base/src/org/compiere/model/MRole.java
+++ b/org.adempiere.base/src/org/compiere/model/MRole.java
@@ -117,7 +117,7 @@ public final class MRole extends X_AD_Role
 	 * 	@param reload if true forces load
 	 *	@return role
 	 */
-	public static MRole get (Properties ctx, int AD_Role_ID, int AD_User_ID, boolean reload)
+	public synchronized static MRole get (Properties ctx, int AD_Role_ID, int AD_User_ID, boolean reload)
 	{
 		if (s_log.isLoggable(Level.INFO)) s_log.info("AD_Role_ID=" + AD_Role_ID + ", AD_User_ID=" + AD_User_ID + ", reload=" + reload);
 		String key = AD_Role_ID + "_" + AD_User_ID;