diff --git a/scripts/inner_source_chroot_update.sh b/scripts/inner_source_chroot_update.sh
index 6400e8c..60c0cdc 100755
--- a/scripts/inner_source_chroot_update.sh
+++ b/scripts/inner_source_chroot_update.sh
@@ -40,6 +40,10 @@ echo "-5" | equo conf update
 kernel_target_pkg="$(equo match -q --installed virtual/linux-binary)"
 current_kernel=$(equo match --installed "${kernel_target_pkg}" -qv)
 available_kernel=$(equo match "${kernel_target_pkg}" -qv)
+# drop revision (-r**)
+# hack while waiting for --showslot
+current_kernel="${current_kernel%-r*}"
+available_kernel="${available_kernel%-r*}"
 if [ "${current_kernel}" != "${available_kernel}" ] && \
 	[ -n "${available_kernel}" ] && [ -n "${current_kernel}" ]; then
 	echo