diff --git a/jedi/parser/fast.py b/jedi/parser/fast.py
index 5bf2f71b..8a750101 100644
--- a/jedi/parser/fast.py
+++ b/jedi/parser/fast.py
@@ -45,7 +45,7 @@ def suite_or_file_input_is_valid(parser):
     stack = parser.pgen_parser.stack
     for dfa, newstate, (symbol_number, nodes) in reversed(stack):
         if symbol_number == parser._grammar.symbol2number['suite']:
-            # If we don't have ondes already, the suite is not valid.
+            # If we don't have nodes already, the suite is not valid.
             return bool(nodes)
     # Not reaching a suite means that we're dealing with file_input levels
     # where there's no need for a valid statement in it. It can also be empty.
diff --git a/test/test_parser/test_diff_parser.py b/test/test_parser/test_diff_parser.py
index 889549f8..0f581a12 100644
--- a/test/test_parser/test_diff_parser.py
+++ b/test/test_parser/test_diff_parser.py
@@ -106,13 +106,13 @@ def test_positions(differ):
     assert m.end_pos == (1, 2)
 
 
-def test_if_simple():
+def test_if_simple(differ):
     src = dedent('''\
     if 1:
         a = 3
     ''')
-    check_fp(src + 'a', 1)
-    check_fp(src + "else:\n    a = ''\na", 1)
+    differ.initialize(src + 'a')
+    differ.parse(src + "else:\n    a = ''\na", copies=1, parsers=1)
 
 
 def test_func_with_for_and_comment():