diff --git a/debian/changelog b/debian/changelog
index 290925b5..2f0677ec 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+livecd-rootfs (25.04.13) UNRELEASED; urgency=medium
+
+  * install-sources: quote default kernel argument.
+
+ -- Chris Peterson <chris.peterson@canonical.com>  Fri, 31 Jan 2025 11:57:07 -0800
+
 livecd-rootfs (25.04.12) plucky; urgency=medium
 
   * Stop producing a rootfs tarball for the ubuntu-mini-iso builds.
diff --git a/live-build/auto/config b/live-build/auto/config
index bf8c314a..36ea1ae2 100755
--- a/live-build/auto/config
+++ b/live-build/auto/config
@@ -247,7 +247,7 @@ write_kernel_yaml () {
 	local metapkg="$1"
 	cat <<-EOF > config/kernel.yaml
 		kernel:
-		  default: $metapkg
+		  default: "$metapkg"
 	EOF
 
 	# To specify fallback to a bridge kernel, construct a kernel.yaml