diff --git a/build-setup.sh b/build-setup.sh
index 4508c55..8f21910 100755
--- a/build-setup.sh
+++ b/build-setup.sh
@@ -356,8 +356,8 @@
 
 # Custom BitBake config settings
 cat >> conf/local.conf << EOF_CONF
-BB_NUMBER_THREADS = "$(nproc)"
-PARALLEL_MAKE = "-j$(nproc)"
+BB_NUMBER_THREADS = "$num_cpu"
+PARALLEL_MAKE = "-j$num_cpu"
 INHERIT += "rm_work"
 BB_GENERATE_MIRROR_TARBALLS = "1"
 DL_DIR="${ssc_dir}/bitbake_downloads"
@@ -425,7 +425,6 @@
     ${mount_obmc_dir} \
     ${mount_ssc_dir} \
     ${mount_workspace_dir} \
-    --cpus="$num_cpu" \
     "${img_name}" \
     "${WORKSPACE}/build.sh"