diff --git a/scripts/package/mkdebian b/scripts/package/mkdebian
index f030961..110cd8d 100755
--- a/scripts/package/mkdebian
+++ b/scripts/package/mkdebian
@@ -134,6 +134,8 @@
 
 mkdir -p debian/
 echo $debarch > debian/arch
+extra_build_depends=", $(if_enabled_echo UNWINDER_ORC libelf-dev)"
+extra_build_depends="$extra_build_depends, $(if_enabled_echo SYSTEM_TRUSTED_KEYRING libssl-dev:native)"
 
 # Generate a simple changelog template
 cat <<EOF > debian/changelog
@@ -170,7 +172,7 @@
 Section: kernel
 Priority: optional
 Maintainer: $maintainer
-Build-Depends: bc, kmod, cpio
+Build-Depends: bc, kmod, cpio, bison, flex | flex:native $extra_build_depends
 Homepage: http://www.kernel.org/
 
 Package: $packagename