diff --git a/src/workerd/io/worker.c++ b/src/workerd/io/worker.c++
index 2de15705961..a4404941114 100644
--- a/src/workerd/io/worker.c++
+++ b/src/workerd/io/worker.c++
@@ -1583,7 +1583,8 @@ bool Worker::Isolate::Impl::Lock::checkInWithLimitEnforcer(Worker::Isolate& isol
 }
 
 kj::Maybe<kj::Function<void(void)>> Worker::Isolate::getCpuLimitNearlyExceededCallback() const {
-  KJ_IF_SOME(cb, *cpuLimitNearlyExceededCallback.lockExclusive()) {
+  auto lock = cpuLimitNearlyExceededCallback.lockExclusive();
+  KJ_IF_SOME(cb, *lock) {
     return cb.reference();
   }
   return kj::none;
diff --git a/src/workerd/jsg/compile-cache.c++ b/src/workerd/jsg/compile-cache.c++
index b6b9be5c797..256dc416db2 100644
--- a/src/workerd/jsg/compile-cache.c++
+++ b/src/workerd/jsg/compile-cache.c++
@@ -20,7 +20,8 @@ void CompileCache::add(
 }
 
 kj::Maybe<CompileCache::Data&> CompileCache::find(kj::StringPtr key) const {
-  KJ_IF_SOME(value, cache.lockExclusive()->find(key)) {
+  auto lock = cache.lockExclusive();
+  KJ_IF_SOME(value, lock->find(key)) {
     if (value.data != nullptr) {
       return value;
     }