diff --git a/kernel/copr-custom-build-script.sh b/kernel/copr-custom-build-script.sh
index a171cbf..be30a74 100644
--- a/kernel/copr-custom-build-script.sh
+++ b/kernel/copr-custom-build-script.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/bash
 
 git clone --recurse-submodules https://github.com/t2linux/fedora t2-fedora
-cd t2-fedora/kernel
-export package_builddir="$PWD"
+cd t2-fedora/kernel || exit
+export sourcedir="$COPR_RESULTDIR"
 ./kernel.sh