1 files changed, 8 insertions, 0 deletions
diff --git a/src/binary-writer-spec.cc b/src/binary-writer-spec.cc
index 3cb6674d..edcf0ba5 100644
--- a/src/binary-writer-spec.cc
+++ b/src/binary-writer-spec.cc
@@ -256,6 +256,14 @@ void BinaryWriterSpec::WriteConst(const Const& const_) {
       break;
     }
 
+    case Type::ExnRef: {
+      WriteString("exnref");
+      WriteSeparator();
+      WriteKey("value");
+      WriteRefBits(const_.ref_bits());
+      break;
+    }
+
     case Type::V128: {
       WriteString("v128");
       WriteSeparator();