diff --git a/isort/profiles.py b/isort/profiles.py
index 2863ea8b..a949d520 100644
--- a/isort/profiles.py
+++ b/isort/profiles.py
@@ -69,7 +69,7 @@
     "multi_line_output": 3,
     "include_trailing_comma": True,
     "use_parentheses": True,
-    "line_length": 79,
+    "line_length": 80,
 }
 appnexus = {
     **black,
diff --git a/tests/unit/profiles/test_wemake.py b/tests/unit/profiles/test_wemake.py
index bcfcf038..a2caa57a 100644
--- a/tests/unit/profiles/test_wemake.py
+++ b/tests/unit/profiles/test_wemake.py
@@ -89,10 +89,22 @@ class _ClassVisitor(ast.NodeVisitor): ...
 
 
 def test_wemake_snippet_four():
-    """80 line length should be fixed"""
+    """80 line length should not be fixed"""
     wemake_isort_test(
         """
 from typing import Iterable, Iterator, Optional, Sequence, Tuple, TypeVar, Union
+""",
+        """
+from typing import Iterable, Iterator, Optional, Sequence, Tuple, TypeVar, Union
+""",
+    )
+
+
+def test_wemake_snippet_five():
+    """81 line length should be fixed"""
+    wemake_isort_test(
+        """
+from typing import Iterable, Iterator, Optional, Sequence, Tuple, TypeVar, Union1
 """,
         """
 from typing import (
@@ -102,7 +114,7 @@ def test_wemake_snippet_four():
     Sequence,
     Tuple,
     TypeVar,
-    Union,
+    Union1,
 )
 """,
     )