diff --git a/analytical/templatetags/google_analytics_gtag.py b/analytical/templatetags/google_analytics_gtag.py
index 57eafe7..02ab34e 100644
--- a/analytical/templatetags/google_analytics_gtag.py
+++ b/analytical/templatetags/google_analytics_gtag.py
@@ -52,7 +52,9 @@ class GoogleAnalyticsGTagNode(Node):
     def __init__(self):
         self.property_id = get_required_setting(
             'GOOGLE_ANALYTICS_GTAG_PROPERTY_ID', PROPERTY_ID_RE,
-            "must be a string looking like one of these patterns ('UA-XXXXXX-Y' , 'AW-XXXXXXXXXX', 'G-XXXXXXXX', 'DC-XXXXXXXX')")
+            '''must be a string looking like one of these patterns 
+            ('UA-XXXXXX-Y' , 'AW-XXXXXXXXXX', 
+            'G-XXXXXXXX', 'DC-XXXXXXXX')''')
 
     def render(self, context):
         other_fields = {}
diff --git a/analytical/tests/test_tag_google_analytics_gtag.py b/analytical/tests/test_tag_google_analytics_gtag.py
index d95f8c0..97cf0ad 100644
--- a/analytical/tests/test_tag_google_analytics_gtag.py
+++ b/analytical/tests/test_tag_google_analytics_gtag.py
@@ -61,7 +61,8 @@ class GoogleAnalyticsTagTestCase(TagTestCase):
     def test_tag_with_measurement_id(self):
         r = self.render_tag('google_analytics_gtag', 'google_analytics_gtag')
         self.assertTrue(
-            '<script async src="https://www.googletagmanager.com/gtag/js?id=G-12345678"></script>'
+            ('<script async src="https://www.googletagmanager.com/gtag/'+
+                'js?id=G-12345678"></script>')
             in r, r)
         self.assertTrue("gtag('js', new Date());" in r, r)
         self.assertTrue("gtag('config', 'G-12345678');" in r, r)
@@ -70,7 +71,8 @@ class GoogleAnalyticsTagTestCase(TagTestCase):
     def test_tag_with_conversion_id(self):
         r = self.render_tag('google_analytics_gtag', 'google_analytics_gtag')
         self.assertTrue(
-            '<script async src="https://www.googletagmanager.com/gtag/js?id=AW-1234567890"></script>'
+            ('<script async src="https://www.googletagmanager.com/gtag/'+
+                'js?id=AW-1234567890"></script>')
             in r, r)
         self.assertTrue("gtag('js', new Date());" in r, r)
         self.assertTrue("gtag('config', 'AW-1234567890');" in r, r)
@@ -79,7 +81,8 @@ class GoogleAnalyticsTagTestCase(TagTestCase):
     def test_tag_with_advertiser_id(self):
         r = self.render_tag('google_analytics_gtag', 'google_analytics_gtag')
         self.assertTrue(
-            '<script async src="https://www.googletagmanager.com/gtag/js?id=DC-12345678"></script>'
+            ('<script async src="https://www.googletagmanager.com/gtag/'+
+                'js?id=DC-12345678"></script>')
             in r, r)
         self.assertTrue("gtag('js', new Date());" in r, r)
         self.assertTrue("gtag('config', 'DC-12345678');" in r, r)
\ No newline at end of file