diff --git a/src/lib.rs b/src/lib.rs
index e171b2d..6c17365 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -55,6 +55,7 @@ pub mod bios;
 pub mod dma;
 pub mod gba_cell;
 pub mod gba_fixed;
+pub mod mem;
 pub mod mmio;
 pub mod panic_handlers;
 pub mod per_project_setup;
diff --git a/src/mem/copy.rs b/src/mem/copy.rs
index 07bfd62..71c72af 100644
--- a/src/mem/copy.rs
+++ b/src/mem/copy.rs
@@ -13,7 +13,7 @@
 #[inline]
 #[link_section = ".iwram.__aeabi_memcpy1"]
 #[cfg_attr(feature = "no_mangle_memcpy", no_mangle)]
-#[cfg_addr(feature = "on_gba", instruction_set(arm::a32))]
+#[cfg_attr(feature = "on_gba", instruction_set(arm::a32))]
 pub unsafe extern "C" fn __aeabi_memcpy1(
   dest: *mut u8, src: *const u8, byte_count: usize,
 ) {