1 files changed, 4 insertions, 2 deletions
diff --git a/components/script/dom/bindings/codegen/parser/tests/test_double_null.py b/components/script/dom/bindings/codegen/parser/tests/test_double_null.py
index 700c7eade00..a8876a7fd2d 100644
--- a/components/script/dom/bindings/codegen/parser/tests/test_double_null.py
+++ b/components/script/dom/bindings/codegen/parser/tests/test_double_null.py
@@ -1,11 +1,13 @@
 def WebIDLTest(parser, harness):
     threw = False
     try:
-        parser.parse("""
+        parser.parse(
+            """
             interface DoubleNull {
               attribute byte?? foo;
             };
-        """)
+        """
+        )
 
         results = parser.finish()
     except: