1 files changed, 1 insertions, 1 deletions
diff --git a/src/binaryen-c.cpp b/src/binaryen-c.cpp
index 4d057d614..3e85a417b 100644
--- a/src/binaryen-c.cpp
+++ b/src/binaryen-c.cpp
@@ -152,7 +152,7 @@ uint32_t BinaryenTypeArity(BinaryenType t) { return Type(t).size(); }
 void BinaryenTypeExpand(BinaryenType t, BinaryenType* buf) {
   Type types(t);
   size_t i = 0;
-  for (auto& type : types) {
+  for (const auto& type : types) {
     buf[i++] = type.getID();
   }
 }