diff --git a/sprockets_influxdb.py b/sprockets_influxdb.py
index 90f41eb..5856adc 100644
--- a/sprockets_influxdb.py
+++ b/sprockets_influxdb.py
@@ -89,7 +89,8 @@ class InfluxDBMixin(object):
         if hasattr(self, 'correlation_id'):
             self.influxdb.set_field('correlation_id', self.correlation_id)
         self.influxdb.set_field('duration', self.request.request_time())
-        parsed = headers.parse_content_type(self._headers['Content-Type'])
+        parsed = headers.parse_content_type(
+            self._headers['Content-Type'].decode('utf-8'))
         self.influxdb.set_tag(
             'content_type', '{}/{}'.format(
                 parsed.content_type, parsed.content_subtype))
diff --git a/tests/base.py b/tests/base.py
index 933722d..a640c76 100644
--- a/tests/base.py
+++ b/tests/base.py
@@ -156,7 +156,7 @@ class FakeInfluxDBHandler(web.RequestHandler):
         payload = self.request.body.decode('utf-8')
         for line in payload.splitlines():
             LOGGER.debug('Line: %r', line)
-            parts = LINE_PATTERN.match(line.encode('utf-8'))
+            parts = LINE_PATTERN.match(line)
             name, tags_str, fields_str, timestamp = parts.groups()
 
             matches = TAG_PATTERN.findall(tags_str)