diff --git a/tools/packaging/kernel/build-kernel.sh b/tools/packaging/kernel/build-kernel.sh
index 83e3d8542e..d72ae2f191 100755
--- a/tools/packaging/kernel/build-kernel.sh
+++ b/tools/packaging/kernel/build-kernel.sh
@@ -470,9 +470,9 @@ build_kernel() {
 	[ -n "${arch_target}" ] || arch_target="$(uname -m)"
 	arch_target=$(arch_to_kernel "${arch_target}")
 	pushd "${kernel_path}" >>/dev/null
-	make -j $(nproc ${CI:+--ignore 1}) ARCH="${arch_target}" ${CROSS_BUILD_ARG}
+	make -j $(nproc) ARCH="${arch_target}" ${CROSS_BUILD_ARG}
 	if [ "${conf_guest}" == "confidential" ]; then
-		make -j $(nproc ${CI:+--ignore 1}) INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=${kernel_path} modules_install
+		make -j $(nproc) INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=${kernel_path} modules_install
 	fi
 	[ "$arch_target" != "powerpc" ] && ([ -e "arch/${arch_target}/boot/bzImage" ] || [ -e "arch/${arch_target}/boot/Image.gz" ])
 	[ -e "vmlinux" ]
@@ -490,10 +490,10 @@ build_kernel_headers() {
 
 	if [ "$linux_headers" == "deb" ]; then
 		export KBUILD_BUILD_USER="${USER}"
-		make -j $(nproc ${CI:+--ignore 1}) bindeb-pkg ARCH="${arch_target}"
+		make -j $(nproc) bindeb-pkg ARCH="${arch_target}"
 	fi
 	if [ "$linux_headers" == "rpm" ]; then
-		make -j $(nproc ${CI:+--ignore 1}) rpm-pkg ARCH="${arch_target}"
+		make -j $(nproc) rpm-pkg ARCH="${arch_target}"
 	fi
 
 	popd >>/dev/null