diff --git a/mutalyzer/services/json.py b/mutalyzer/services/json.py
index b4c95485fb02ad9ed4c9f09ce48776754b473a59..ad4945e2c316a9abd700e388dd17ab37d85bf67e 100644
--- a/mutalyzer/services/json.py
+++ b/mutalyzer/services/json.py
@@ -12,6 +12,10 @@ from mutalyzer.services import rpc
 
 
 # HTTP/RPC application.
+# Note that we originally provided skip_depth=2 to the JsonObject constructor
+# to get rid of some annoying wrappers around the json results. However, this
+# breaks methods returning a primitive datatype (e.g. just a string). Might
+# file a bug about this on spyne.
 application = Application([rpc.MutalyzerService], tns=mutalyzer.SOAP_NAMESPACE,
-                          in_protocol=HttpRpc(), out_protocol=JsonObject(skip_depth=2),
+                          in_protocol=HttpRpc(), out_protocol=JsonObject(),
                           name='Mutalyzer')