1 files changed, 1 insertions, 1 deletions
diff --git a/src/passes/Vacuum.cpp b/src/passes/Vacuum.cpp
index a29c74a89..44abed27b 100644
--- a/src/passes/Vacuum.cpp
+++ b/src/passes/Vacuum.cpp
@@ -33,7 +33,7 @@ namespace wasm {
 struct Vacuum : public WalkerPass<ExpressionStackWalker<Vacuum>> {
   bool isFunctionParallel() override { return true; }
 
-  Pass* create() override { return new Vacuum; }
+  std::unique_ptr<Pass> create() override { return std::make_unique<Vacuum>(); }
 
   TypeUpdater typeUpdater;