1 files changed, 4 insertions, 1 deletions
diff --git a/src/wasm/wasm-binary.cpp b/src/wasm/wasm-binary.cpp
index 95658cbe7..4804626da 100644
--- a/src/wasm/wasm-binary.cpp
+++ b/src/wasm/wasm-binary.cpp
@@ -6508,7 +6508,10 @@ void WasmBinaryBuilder::visitRethrow(Rethrow* curr) {
   BYN_TRACE("zz node: Rethrow\n");
   curr->target = getExceptionTargetName(getU32LEB());
   // This special target is valid only for delegates
-  assert(curr->target != DELEGATE_CALLER_TARGET);
+  if (curr->target == DELEGATE_CALLER_TARGET) {
+    throwError(std::string("rethrow target cannot use internal name ") +
+               DELEGATE_CALLER_TARGET.str);
+  }
   curr->finalize();
 }