diff --git a/meta-networking/recipes-support/unbound/unbound_1.17.1.bb b/meta-networking/recipes-support/unbound/unbound_1.17.1.bb
index 24ac6012b5..9855a557a4 100644
--- a/meta-networking/recipes-support/unbound/unbound_1.17.1.bb
+++ b/meta-networking/recipes-support/unbound/unbound_1.17.1.bb
@@ -29,6 +29,10 @@ PACKAGECONFIG ??= "${@bb.utils.filter('DISTRO_FEATURES', 'systemd', d)}"
 PACKAGECONFIG[dnscrypt] = "--enable-dnscrypt, --disable-dnscrypt, libsodium"
 PACKAGECONFIG[systemd] = "--enable-systemd,--disable-systemd,systemd"
 
+do_configure:append() {
+	sed -i -e 's#${RECIPE_SYSROOT}##g' ${B}/config.h
+}
+
 do_install:append() {
 	install -d ${D}${systemd_unitdir}/system
 	install -m 0644 ${B}/contrib/unbound.service ${D}${systemd_unitdir}/system