diff --git a/src/sly/parser/generator/ExpressionRulesGenerator.cs b/src/sly/parser/generator/ExpressionRulesGenerator.cs
index 711876c3..84f8c32c 100644
--- a/src/sly/parser/generator/ExpressionRulesGenerator.cs
+++ b/src/sly/parser/generator/ExpressionRulesGenerator.cs
@@ -129,7 +129,6 @@ private string GetOperandNonTerminal(Type parserClass, ParserConfiguration<IN,OU
             if (!operandMethods.Any<MethodInfo>())
             {
                 result.AddError(new ParserInitializationError(ErrorLevel.FATAL, I18N.Instance.GetText(I18n,I18NMessage.MissingOperand),ErrorCodes.PARSER_MISSING_OPERAND));
-                throw new Exception("missing [operand] attribute");
             }
 
             string operandNonTerminalName = null;