diff --git a/project-lakitu/eclass/cos-kernel.eclass b/project-lakitu/eclass/cos-kernel.eclass
index f9f88a9..f68432f 100644
--- a/project-lakitu/eclass/cos-kernel.eclass
+++ b/project-lakitu/eclass/cos-kernel.eclass
@@ -183,14 +183,16 @@
 
 	do_osrelease_field "KERNEL_COMMIT_ID" "$(get_kernel_commit_id)"
 
-	# Install kernel source and headers tarballs so they can be exported as
-	# artifacts later.
-	tar_kernel_source
-	tar_kernel_headers
-	# Install kernel compiler information
-	write_toolchain_env
-	# Install kernel source information
-	write_kernel_info
-	# Install kernel commit information
-	write_kernel_commit
+	if use kernel_sources; then
+		# Install kernel source and headers tarballs so they can be exported as
+		# artifacts later.
+		tar_kernel_source
+		tar_kernel_headers
+		# Install kernel compiler information
+		write_toolchain_env
+		# Install kernel source information
+		write_kernel_info
+		# Install kernel commit information
+		write_kernel_commit
+	fi
 }