diff --git a/src/node_realm.cc b/src/node_realm.cc
index 23fb6bd55213ee..6262ed8cde59f2 100644
--- a/src/node_realm.cc
+++ b/src/node_realm.cc
@@ -223,7 +223,7 @@ void Realm::PrintInfoForSnapshot() {
   fprintf(stderr, "BaseObjects of the Realm:\n");
   size_t i = 0;
   ForEachBaseObject([&](BaseObject* obj) {
-    std::cout << "#" << i++ << " " << obj << ": " << obj->MemoryInfoName()
+    std::cerr << "#" << i++ << " " << obj << ": " << obj->MemoryInfoName()
               << "\n";
   });
 
diff --git a/src/node_snapshotable.cc b/src/node_snapshotable.cc
index 562a47ddcc9c8e..0a9c5db2af5075 100644
--- a/src/node_snapshotable.cc
+++ b/src/node_snapshotable.cc
@@ -1074,7 +1074,7 @@ ExitCode SnapshotBuilder::CreateSnapshot(SnapshotData* out,
 
       if (per_process::enabled_debug_list.enabled(DebugCategory::MKSNAPSHOT)) {
         env->ForEachRealm([](Realm* realm) { realm->PrintInfoForSnapshot(); });
-        printf("Environment = %p\n", env);
+        fprintf(stderr, "Environment = %p\n", env);
       }
 
       // Serialize the native states