1 files changed, 1 insertions, 1 deletions
diff --git a/src/parsing.h b/src/parsing.h
index 2591c4357..7017fdb0f 100644
--- a/src/parsing.h
+++ b/src/parsing.h
@@ -265,7 +265,7 @@ parseConst(cashew::IString s, Type type, MixedArena& allocator) {
     case v128:
     case anyref: // there's no anyref.const
     case exnref: // there's no exnref.const
-      WASM_UNREACHABLE();
+      WASM_UNREACHABLE("unexpected const type");
     case none:
     case unreachable: {
       return nullptr;