diff --git a/minicps/protocols.py b/minicps/protocols.py
index 7143302..4803e18 100644
--- a/minicps/protocols.py
+++ b/minicps/protocols.py
@@ -219,6 +219,10 @@ def _tuple_to_cpppo_tag(cls, what, value=None, serializer=':'):
                 tag_string += EnipProtocol._SERIALIZER
                 tag_string += str(field)
         if value is not None:
+            if type(value) is str:
+                # TODO: add support for SSTRING tags
+                # ''' enip_client -a 192.168.1.20 'README:2[0]=(SSTRING)"string"' '''
+                pass
             tag_string += '='
             tag_string += str(value)
         # print 'DEBUG _tuple_to_cpppo_tag tag_string: ', tag_string
diff --git a/temp/README.md b/temp/README.md
new file mode 100644
index 0000000..9223a50
--- /dev/null
+++ b/temp/README.md
@@ -0,0 +1 @@
+Track the temp dir, please don't remove it.
diff --git a/temp/devices_tests.sqlite b/temp/devices_tests.sqlite
deleted file mode 100644
index e69de29..0000000