diff --git a/mkosi/mkosi.images/build/mkosi.conf.d/debian-ubuntu/mkosi.conf b/mkosi/mkosi.images/build/mkosi.conf.d/debian-ubuntu/mkosi.conf
index ee71965f29..240f357b98 100644
--- a/mkosi/mkosi.images/build/mkosi.conf.d/debian-ubuntu/mkosi.conf
+++ b/mkosi/mkosi.images/build/mkosi.conf.d/debian-ubuntu/mkosi.conf
@@ -13,5 +13,5 @@ Packages=
         clangd
         erofs-utils
         git-core
-        libclang-rt-dev
+        ?exact-name(libclang-rt-dev)
         dpkg-dev