diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 8028acb..48b2aca 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -5,7 +5,6 @@ antlr_target(SysYGen SysY.g4
   LEXER PARSER
   OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
   VISITOR
-  LISTENER
 )
 
 add_library(SysYParser SHARED ${ANTLR_SysYGen_CXX_OUTPUTS})