diff --git a/crates/wasmi/src/engine/cache.rs b/crates/wasmi/src/engine/cache.rs
index 06facfae94..af48e9d70e 100644
--- a/crates/wasmi/src/engine/cache.rs
+++ b/crates/wasmi/src/engine/cache.rs
@@ -200,7 +200,7 @@ impl InstanceCache {
     fn load_default_memory_bytes(&mut self, ctx: &mut StoreInner) -> &mut NonNull<[u8]> {
         let memory = *self.default_memory(ctx);
         self.default_memory_bytes
-            .insert(ctx.resolve_memory_mut(&memory).data().into())
+            .insert(ctx.resolve_memory_mut(&memory).data_mut().into())
     }
 
     /// Clears the cached default memory instance.