diff --git a/js/src/jit-test/tests/tracelogger/bug1304641.js b/js/src/jit-test/tests/tracelogger/bug1304641.js
new file mode 100644
index 000000000..7ad48b7a4
--- /dev/null
+++ b/js/src/jit-test/tests/tracelogger/bug1304641.js
@@ -0,0 +1,13 @@
+
+var du = new Debugger();
+if (typeof du.startTraceLogger === "function") {
+    var failed = false;
+    try {
+        newGlobal().startTraceLogger();
+        print("z");
+    } catch (e) {
+        failed = true;
+    }
+
+    assertEq(failed, true);
+}
diff --git a/js/src/vm/TraceLogging.cpp b/js/src/vm/TraceLogging.cpp
index ce7acc6e9..90575dbc5 100644
--- a/js/src/vm/TraceLogging.cpp
+++ b/js/src/vm/TraceLogging.cpp
@@ -256,9 +256,9 @@ TraceLoggerThread::enable(JSContext* cx)
 
             script = fp->script();
             engine = TraceLogger_Interpreter;
-            if (script->compartment() != cx->compartment())
-                return fail(cx, "compartment mismatch");
         }
+        if (script->compartment() != cx->compartment())
+            return fail(cx, "compartment mismatch");
 
         TraceLoggerEvent event(this, TraceLogger_Scripts, script);
         startEvent(event);