diff --git a/ices/81899.rs b/ices/81899.rs
new file mode 100644
index 00000000..4c0a2a6d
--- /dev/null
+++ b/ices/81899.rs
@@ -0,0 +1,10 @@
+const _CONST: &[u8] = &f(&[], |_| {});
+
+const fn f<F>(_: &[u8], _: F) -> &[u8]
+where
+    F: FnMut(&u8),
+{
+    panic!()
+}
+
+fn main() {}