diff --git a/RIGS/finance.py b/RIGS/finance.py
index 422d9e3b..6465752f 100644
--- a/RIGS/finance.py
+++ b/RIGS/finance.py
@@ -1,4 +1,3 @@
-import io as StringIO
 import datetime
 import re
 
@@ -72,7 +71,6 @@ class InvoicePrint(generic.View):
         }
 
         rml = template.render(context)
-        buffer = StringIO.StringIO()
 
         buffer = rml2pdf.parseString(rml)
 
diff --git a/RIGS/rigboard.py b/RIGS/rigboard.py
index db66ad4d..c6d5e0d7 100644
--- a/RIGS/rigboard.py
+++ b/RIGS/rigboard.py
@@ -1,4 +1,3 @@
-import io as StringIO
 from io import BytesIO
 import urllib.request, urllib.error, urllib.parse
 
@@ -184,7 +183,7 @@ class EventPrint(generic.View):
         buffer.close()
 
         terms = urllib.request.urlopen(settings.TERMS_OF_HIRE_URL)
-        merger.append(StringIO.StringIO(terms.read()))
+        merger.append(BytesIO(terms.read()))
 
         merged = BytesIO()
         merger.write(merged)
diff --git a/RIGS/signals.py b/RIGS/signals.py
index e6b803c5..b52d9c04 100644
--- a/RIGS/signals.py
+++ b/RIGS/signals.py
@@ -1,4 +1,3 @@
-import io as StringIO
 import re
 import urllib.request, urllib.error, urllib.parse
 from io import BytesIO
@@ -39,7 +38,7 @@ def send_eventauthorisation_success_email(instance):
     buffer.close()
 
     terms = urllib.request.urlopen(settings.TERMS_OF_HIRE_URL)
-    merger.append(StringIO.StringIO(terms.read()))
+    merger.append(BytesIO(terms.read()))
 
     merged = BytesIO()
     merger.write(merged)