diff --git a/lld/test/wasm/export-empty.test b/lld/test/wasm/export-empty.test
new file mode 100644
--- /dev/null
+++ b/lld/test/wasm/export-empty.test
@@ -0,0 +1,4 @@
+RUN: llc -filetype=obj %p/Inputs/start.ll -o %t.o
+RUN: not wasm-ld --export "" %t.o -o %t.wasm 2>&1 | FileCheck --match-full-lines %s
+
+CHECK: wasm-ld: error: symbol exported via --export not found: 
diff --git a/llvm/include/llvm/ADT/StringSet.h b/llvm/include/llvm/ADT/StringSet.h
--- a/llvm/include/llvm/ADT/StringSet.h
+++ b/llvm/include/llvm/ADT/StringSet.h
@@ -36,7 +36,6 @@
     explicit StringSet(AllocatorTy A) : base(A) {}
 
     std::pair<typename base::iterator, bool> insert(StringRef Key) {
-      assert(!Key.empty());
       return base::insert(std::make_pair(Key, None));
     }