diff --git a/runtime/src/memory/64bit_nix.c b/runtime/src/memory/64bit_nix.c
index 7d2233d..b76177e 100644
--- a/runtime/src/memory/64bit_nix.c
+++ b/runtime/src/memory/64bit_nix.c
@@ -1,11 +1,11 @@
+#ifdef USE_MEM_VM
+
 #include "current_sandbox.h"
 #include "panic.h"
 #include "runtime.h"
 #include "sandbox.h"
 #include "types.h"
 
-#ifdef USE_MEM_VM
-
 #include <sys/mman.h>
 
 #define MAX_LINEAR_MEM ((1LL << 32) + WASM_PAGE_SIZE)