diff --git a/src/runtime/backend.rs b/src/runtime/backend.rs
index 18b5387c4..87fd2d747 100644
--- a/src/runtime/backend.rs
+++ b/src/runtime/backend.rs
@@ -1,4 +1,5 @@
 use crate::runtime::{module::Module, types::FuncIndex, vm};
+use std::ptr::NonNull;
 use std::sync::Arc;
 
 pub trait Compiler {
@@ -6,5 +7,5 @@ pub trait Compiler {
 }
 
 pub trait FuncResolver {
-    fn resolve(&self, index: FuncIndex) -> Option<*const vm::Func>;
+    fn resolve(&self, index: FuncIndex) -> Option<NonNull<vm::Func>>;
 }