diff --git a/src/node_main_instance.cc b/src/node_main_instance.cc
index ad6966cf4fc13e..d53eaa7329beed 100644
--- a/src/node_main_instance.cc
+++ b/src/node_main_instance.cc
@@ -102,8 +102,12 @@ NodeMainInstance::~NodeMainInstance() {
   if (!owns_isolate_) {
     return;
   }
-  platform_->UnregisterIsolate(isolate_);
+  // TODO(addaleax): Reverse the order of these calls. The fact that we first
+  // dispose the Isolate is a temporary workaround for
+  // https://github.com/nodejs/node/issues/31752 -- V8 should not be posting
+  // platform tasks during Dispose(), but it does in some WASM edge cases.
   isolate_->Dispose();
+  platform_->UnregisterIsolate(isolate_);
 }
 
 int NodeMainInstance::Run() {