diff --git a/src/retro/wrapper.rs b/src/retro/wrapper.rs
index a043152..46a9d19 100644
--- a/src/retro/wrapper.rs
+++ b/src/retro/wrapper.rs
@@ -595,7 +595,7 @@ impl StaticCallbacks {
             }
             EnvCmd::SetMemoryMaps => {
                 let map = Self::from_void::<MemoryMap>(data)?.clone();
-                handler.set_memory_maps(map)
+                handler.set_memory_maps(&map)?
             },
             EnvCmd::SetGeometry => {
                 handler.set_geometry(Self::from_void::<GameGeometry>(data)?)?