diff --git a/build.sh b/build.sh
index 896616c482..99896652d9 100755
--- a/build.sh
+++ b/build.sh
@@ -170,7 +170,7 @@ function build
         ln -sf ${TOPDIR}/build_ccls/compile_commands.json ${TOPDIR}/compile_commands.json
         ;;
       xperf)
-        do_build "$@" -DCMAKE_BUILD_TYPE=RelWithDebInfo -DENABLE_AUTO_FDO=ON -DENABLE_THIN_LTO=ON -DOB_USE_LLD=$LLD_OPTION -DENABLE_PERF_MODE=ON
+        do_build "$@" -DCMAKE_BUILD_TYPE=RelWithDebInfo -DENABLE_AUTO_FDO=ON -DENABLE_THIN_LTO=ON -DOB_USE_LLD=$LLD_OPTION
         ;;
       xdebug_asan)
         do_build "$@" -DCMAKE_BUILD_TYPE=Debug -DOB_USE_LLD=$LLD_OPTION -DOB_USE_ASAN=$ASAN_OPTION