diff --git a/system/lib/wasmfs/syscalls.cpp b/system/lib/wasmfs/syscalls.cpp
index 6271c104a2f5b..7b6817f22a024 100644
--- a/system/lib/wasmfs/syscalls.cpp
+++ b/system/lib/wasmfs/syscalls.cpp
@@ -1529,7 +1529,6 @@ intptr_t _mmap_js(
   if (!ptr) {
     return -ENOMEM;
   }
-  *allocated = true;
 
   auto written = file->locked().read(ptr, length, offset);
   if (written < 0) {