diff --git a/Makefile b/Makefile
index 21565486..27f443ee 100644
--- a/Makefile
+++ b/Makefile
@@ -236,7 +236,7 @@ qemutests: build/libv86.js build/v86.wasm
 	./tests/qemu/test-i386 > /tmp/v86-test-reference
 	diff /tmp/v86-test-result /tmp/v86-test-reference
 
-kvm-unit-test: build/libv86.js build/v86.wasm
+kvm-unit-test: build/libv86-debug.js build/v86-debug.wasm
 	(cd tests/kvm-unit-tests && ./configure)
 	$(MAKE) -C tests/kvm-unit-tests
 	tests/kvm-unit-tests/run.js tests/kvm-unit-tests/x86/realmode.flat
diff --git a/tests/kvm-unit-tests/run.js b/tests/kvm-unit-tests/run.js
index 7f9e27b5..506b8704 100755
--- a/tests/kvm-unit-tests/run.js
+++ b/tests/kvm-unit-tests/run.js
@@ -1,7 +1,7 @@
 #!/usr/bin/env node
 "use strict";
 
-var V86 = require("../../build/libv86.js").V86;
+var V86 = require("../../build/libv86-debug.js").V86;
 var fs = require("fs");
 
 function readfile(path)
@@ -29,6 +29,7 @@ var emulator = new V86({
     multiboot: new Loader(process.argv[2]),
     autostart: true,
     memory_size: 64 * 1024 * 1024,
+    log_level: 0,
 });
 
 emulator.bus.register("emulator-started", function()