diff --git a/src/node_wasi.cc b/src/node_wasi.cc
index a9b5dae9d6ceca..8efb996102f7b9 100644
--- a/src/node_wasi.cc
+++ b/src/node_wasi.cc
@@ -162,6 +162,15 @@ void WASI::New(const FunctionCallbackInfo<Value>& args) {
       free(options.envp[i]);
     delete[] options.envp;
   }
+
+  if (options.preopens != nullptr) {
+    for (uint32_t i = 0; i < options.preopenc; i++) {
+      free(options.preopens[i].mapped_path);
+      free(options.preopens[i].real_path);
+    }
+
+    delete[] options.preopens;
+  }
 }