diff --git a/tools/binpac/src/CMakeLists.txt b/tools/binpac/src/CMakeLists.txt
index 24529cce6e..f1a3068b8c 100644
--- a/tools/binpac/src/CMakeLists.txt
+++ b/tools/binpac/src/CMakeLists.txt
@@ -1,6 +1,5 @@
 bison_target(PACParser pac_parse.yy ${BinPAC_BINARY_DIR}/src/pac_parse.cc
-	     HEADER ${BinPAC_BINARY_DIR}/src/pac_parse.h
-	     VERBOSE ${BinPAC_BINARY_DIR}/src/pac_parse.output
+	     DEFINES_FILE ${BinPAC_BINARY_DIR}/src/pac_parse.h
              COMPILE_FLAGS "--debug")
 flex_target(PACScanner pac_scan.ll ${BinPAC_BINARY_DIR}/pac_scan.cc)
 add_flex_bison_dependency(PACScanner PACParser)
@@ -10,7 +9,7 @@ else()
     set_property(SOURCE pac_scan.cc APPEND_STRING PROPERTY COMPILE_FLAGS "-Wno-sign-compare")
 endif()
 include(RequireCXX17)
-    
+
 include_directories(${PROJECT_SOURCE_DIR}/src
                     ${PROJECT_BINARY_DIR}/src)