diff --git a/app-emulation/virtualbox-guest-additions/virtualbox-guest-additions-6.1.6.ebuild b/app-emulation/virtualbox-guest-additions/virtualbox-guest-additions-6.1.6.ebuild
index 6779b7c6cc..68d7811c4f 100644
--- a/app-emulation/virtualbox-guest-additions/virtualbox-guest-additions-6.1.6.ebuild
+++ b/app-emulation/virtualbox-guest-additions/virtualbox-guest-additions-6.1.6.ebuild
@@ -61,7 +61,7 @@ pkg_setup() {
        use X && MODULE_NAMES+=" vboxvideo(misc:${VBOX_MOD_SRC_DIR}/vboxvideo::${VBOX_MOD_SRC_DIR}/vboxvideo)"
 
        linux-mod_pkg_setup
-       BUILD_PARAMS="KERN_DIR=/lib/modules/${KV_FULL}/build KERNOUT=${KV_OUT_DIR}"
+       BUILD_PARAMS="KERN_DIR=/lib/modules/${KV_FULL}/build KERNOUT=${KV_OUT_DIR} KBUILD_EXTRA_SYMBOLS=${S}/Module.symvers"
 }
 
 src_prepare() {