diff --git a/build b/build
index 2877a8fb..28d8be08 100755
--- a/build
+++ b/build
@@ -139,7 +139,6 @@ fetch_trees()
 		[ ! -f "$x" ] || [ -L "$xp" ] || x_ rm -Rf "src/$xp/$xp"
 	done
 	rmgit .
-	rm -Rf tmp .git src/u-boot/*/test/lib/strlcat.c || $err "$_xm !rm"
 }
 
 fail()
diff --git a/config/u-boot/default/nuke.list b/config/u-boot/default/nuke.list
new file mode 100644
index 00000000..f3a3fcc3
--- /dev/null
+++ b/config/u-boot/default/nuke.list
@@ -0,0 +1 @@
+test/lib/strlcat.c