Showing with 4 additions and 1 deletion.

+4 −1 src/core/qgsexpression.cpp
diff --git a/src/core/qgsexpression.cpp b/src/core/qgsexpression.cpp
@@ -2243,7 +2243,10 @@ QVariant QgsExpression::NodeColumnRef::eval( QgsExpression* /*parent*/, QgsFeatu
 {
   if ( f )
   {
-    return f->attribute( mIndex );
+    if ( mIndex >= 0 )
+      return f->attribute( mIndex );
+    else
+      return f->attribute( mName );
   }
   return QVariant( "[" + mName + "]" );
 }