diff --git a/org.adempiere.base/src/org/compiere/model/GridTab.java b/org.adempiere.base/src/org/compiere/model/GridTab.java
index ffac3a3dca..52fe5abc7d 100644
--- a/org.adempiere.base/src/org/compiere/model/GridTab.java
+++ b/org.adempiere.base/src/org/compiere/model/GridTab.java
@@ -2794,7 +2794,8 @@ public class GridTab implements DataStatusListener, Evaluatee, Serializable
 			{
 				MLookup mLookup = (MLookup)dependentField.getLookup();
 				//  if the lookup is dynamic (i.e. contains this columnName as variable)
-				if (mLookup.getValidation().indexOf("@"+columnName+"@") != -1)
+				if (mLookup.getValidation().indexOf("@"+columnName+"@") != -1
+						|| mLookup.getValidation().matches(".*[@]"+columnName+"[:].+[@].*$"))
 				{
 					if (log.isLoggable(Level.FINE)) log.fine(columnName + " changed - "
 						+ dependentField.getColumnName() + " set to null");
diff --git a/org.adempiere.base/src/org/compiere/util/Evaluator.java b/org.adempiere.base/src/org/compiere/util/Evaluator.java
index 9b56b85b5d..9ca826fba5 100644
--- a/org.adempiere.base/src/org/compiere/util/Evaluator.java
+++ b/org.adempiere.base/src/org/compiere/util/Evaluator.java
@@ -293,6 +293,8 @@ public class Evaluator
 			variable = variable.replaceFirst("[0-9][0-9]*\\|", "");
 			if (variable.indexOf(".") > 0)
 				variable = variable.substring(0, variable.indexOf("."));
+			if (variable.indexOf(":") > 0)
+				variable = variable.substring(0, variable.indexOf(":"));
 			list.add(variable);
 		}
 	}   //  parseDepends