diff --git a/plugin/controllers/ajax.py b/plugin/controllers/ajax.py
index ab04c748a..ee42a409c 100644
--- a/plugin/controllers/ajax.py
+++ b/plugin/controllers/ajax.py
@@ -23,6 +23,7 @@
 from Tools.Directories import fileExists
 from Components.config import config
 from time import mktime, localtime
+from six import ensure_str
 import os
 
 from Plugins.Extensions.OpenWebif.controllers.models.services import getBouquets, getChannels, getAllServices, getSatellites, getProviders, getEventDesc, getSimilarEpg, getChannelEpg, getSearchEpg, getCurrentFullInfo, getMultiEpg, getEvent
@@ -369,7 +370,7 @@ def P_webtv(self, request):
 			if session.GetAuth(request) is not None:
 				auth = ':'.join(session.GetAuth(request)) + "@"
 			else:
-				auth = '-sid:' + str(session.GetSID(request)) + "@"
+				auth = '-sid:' + ensure_str(session.GetSID(request)) + "@"
 		else:
 			auth = ''
 		vxgenabled = False
diff --git a/plugin/controllers/models/stream.py b/plugin/controllers/models/stream.py
index 2a49e5b6f..b3e006321 100644
--- a/plugin/controllers/models/stream.py
+++ b/plugin/controllers/models/stream.py
@@ -11,6 +11,7 @@
 from enigma import eServiceReference, getBestPlayableServiceReference
 from ServiceReference import ServiceReference
 from six.moves.urllib.parse import unquote, quote
+from six import ensure_str
 import os
 import re
 from Components.config import config
@@ -120,7 +121,7 @@ def getStream(session, request, m3ufile):
 		if asession.GetAuth(request) is not None:
 			auth = ':'.join(asession.GetAuth(request)) + "@"
 		else:
-			auth = '-sid:' + str(asession.GetSID(request)) + "@"
+			auth = '-sid:' + ensure_str(asession.GetSID(request)) + "@"
 	else:
 		auth = ''
 
@@ -240,7 +241,7 @@ def getTS(self, request):
 			if asession.GetAuth(request) is not None:
 				auth = ':'.join(asession.GetAuth(request)) + "@"
 			else:
-				auth = '-sid:' + str(asession.GetSID(request)) + "@"
+				auth = '-sid:' + ensure_str(asession.GetSID(request)) + "@"
 		else:
 			auth = ''
 
diff --git a/plugin/controllers/web.py b/plugin/controllers/web.py
index ce7eaaa08..c9cff4926 100644
--- a/plugin/controllers/web.py
+++ b/plugin/controllers/web.py
@@ -549,7 +549,7 @@ def P_servicesxspf(self, request):
 			if session.GetAuth(request) is not None:
 				auth = ':'.join(session.GetAuth(request)) + "@"
 			else:
-				auth = '-sid:' + str(session.GetSID(request)) + "@"
+				auth = '-sid:' + ensure_str(session.GetSID(request)) + "@"
 		else:
 			auth = ''
 		portNumber = comp_config.OpenWebif.streamport.value
@@ -588,7 +588,7 @@ def P_servicesm3u(self, request):
 			if session.GetAuth(request) is not None:
 				auth = ':'.join(session.GetAuth(request)) + "@"
 			else:
-				auth = '-sid:' + str(session.GetSID(request)) + "@"
+				auth = '-sid:' + ensure_str(session.GetSID(request)) + "@"
 		else:
 			auth = ''
 		portNumber = comp_config.OpenWebif.streamport.value