diff --git a/parser/CMakeLists.txt b/parser/CMakeLists.txt
index 0ec0b94becc1c353d25d6133c4b2f9fa5e5590b9..b07962dacc0ee31addc2f56fb6b141bf4db8f5a6 100644
--- a/parser/CMakeLists.txt
+++ b/parser/CMakeLists.txt
@@ -20,10 +20,12 @@ add_library (verilog_parser STATIC
 include_directories("../../lcom/include")
 include_directories("../hdl4secell/include")
 include_directories("../bignumber/include")
+include_directories("../parser")
+include_directories("../preprocess/include")
 
 add_custom_command(OUTPUT verilog_scanner.c 
-                   COMMAND flex ARGS verilog_scanner.l
+                   COMMAND flex ARGS ../../../../../hdl4se/parser/verilog_scanner.l
                    )
 add_custom_command(OUTPUT verilog_parser.tab.c verilog_parser.tab.h 
-                   COMMAND bison ARGS verilog_parser.y)
+                   COMMAND bison ARGS ../../../../../hdl4se/parser/verilog_parser.y)
 
diff --git a/parser/flex.bat b/parser/flex.bat
deleted file mode 100644
index b1a1a8ec574b31d036321b89cee90f7c36172efd..0000000000000000000000000000000000000000
--- a/parser/flex.bat
+++ /dev/null
@@ -1 +0,0 @@
-flex %1