1 files changed, 2 insertions, 3 deletions
diff --git a/src/ir/module-utils.cpp b/src/ir/module-utils.cpp
index 8e6ac0d1a..f7ba7d776 100644
--- a/src/ir/module-utils.cpp
+++ b/src/ir/module-utils.cpp
@@ -317,11 +317,10 @@ std::vector<HeapType> getPublicHeapTypes(Module& wasm) {
 }
 
 std::vector<HeapType> getPrivateHeapTypes(Module& wasm) {
-  auto allTypes = getHeapTypeCounts(wasm, true);
+  auto usedTypes = getHeapTypeCounts(wasm, true);
   auto publicTypes = getPublicTypeSet(wasm);
   std::vector<HeapType> types;
-  types.reserve(allTypes.size() - publicTypes.size());
-  for (auto& [type, _] : allTypes) {
+  for (auto& [type, _] : usedTypes) {
     if (!publicTypes.count(type)) {
       types.push_back(type);
     }