diff --git a/Makefile b/Makefile
index b1c267ed5526fe..0225305714aa04 100644
--- a/Makefile
+++ b/Makefile
@@ -287,6 +287,7 @@ coverage-report-js:
 cctest: all
 	@out/$(BUILDTYPE)/$@ --gtest_filter=$(GTEST_FILTER)
 	@out/$(BUILDTYPE)/embedtest "require('./test/embedding/test-embedding.js')"
+	@out/$(BUILDTYPE)/embedtest "throw new Error" > /dev/null 2>&1; test "$?" -eq 1
 
 .PHONY: list-gtests
 list-gtests:
diff --git a/test/embedding/embedtest.cc b/test/embedding/embedtest.cc
index a03dfbed93939c..8156f676dd3cad 100644
--- a/test/embedding/embedtest.cc
+++ b/test/embedding/embedtest.cc
@@ -89,7 +89,7 @@ int RunNodeInstance(MultiIsolatePlatform* platform,
       snapshot_as_file = true;
     } else if (arg == "--embedder-snapshot-blob") {
       assert(i + 1 < args.size());
-      snapshot_blob_path = args[i + i];
+      snapshot_blob_path = args[i + 1];
       i++;
     } else {
       filtered_args.push_back(arg);
@@ -165,7 +165,7 @@ int RunNodeInstance(MultiIsolatePlatform* platform,
           "  globalThis.require = publicRequire;"
           "} else globalThis.require = require;"
           "globalThis.embedVars = { nön_ascıı: '🏳️‍🌈' };"
-          "require('vm').runInThisContext(process.argv[2]);");
+          "require('vm').runInThisContext(process.argv[1]);");
     }
 
     if (loadenv_ret.IsEmpty())  // There has been a JS exception.