diff --git a/test/fuzz/fuzz-nspawn-settings/oss-fuzz-13691 b/test/fuzz/fuzz-nspawn-settings/oss-fuzz-13691
new file mode 100644
index 00000000000..51f46e37346
--- /dev/null
+++ b/test/fuzz/fuzz-nspawn-settings/oss-fuzz-13691
@@ -0,0 +1,2 @@
+[Files]
+Overlay=/::
\ No newline at end of file