diff --git a/src/node_snapshotable.cc b/src/node_snapshotable.cc
index fe3fcc7184205f..f9acb7b1d1618e 100644
--- a/src/node_snapshotable.cc
+++ b/src/node_snapshotable.cc
@@ -962,6 +962,8 @@ ExitCode BuildSnapshotWithoutCodeCache(
   }
 
   Isolate* isolate = setup->isolate();
+  v8::Locker locker(isolate);
+
   {
     HandleScope scope(isolate);
     TryCatch bootstrapCatch(isolate);