1 files changed, 6 insertions, 1 deletions
diff --git a/src/wasm/wasm-binary.cpp b/src/wasm/wasm-binary.cpp
index 3c8cc86df..151a7f911 100644
--- a/src/wasm/wasm-binary.cpp
+++ b/src/wasm/wasm-binary.cpp
@@ -2464,7 +2464,12 @@ void WasmBinaryReader::readTypes() {
   if (auto* err = result.getError()) {
     Fatal() << "Invalid type: " << err->reason << " at index " << err->index;
   }
-  types = *result;
+  types = std::move(*result);
+
+  // Record the type indices.
+  for (Index i = 0; i < types.size(); ++i) {
+    wasm.typeIndices.insert({types[i], i});
+  }
 }
 
 Name WasmBinaryReader::getFunctionName(Index index) {