diff --git a/jedi/parser/diff.py b/jedi/parser/diff.py
index ee0e87eb..ea0860fd 100644
--- a/jedi/parser/diff.py
+++ b/jedi/parser/diff.py
@@ -12,7 +12,7 @@ from collections import namedtuple
 from jedi._compatibility import use_metaclass
 from jedi import settings
 from jedi.common import splitlines
-from jedi.parser import ParserWithRecovery
+from jedi.parser.python.parser import ParserWithRecovery, _remove_last_newline
 from jedi.parser.python.tree import EndMarker
 from jedi.parser.utils import parser_cache
 from jedi import debug
@@ -183,7 +183,7 @@ class DiffParser(object):
         self._nodes_stack.close()
 
         if self._added_newline:
-            self._parser._remove_last_newline()
+            _remove_last_newline(self._parser.get_root_node())
 
         self._parser.source = ''.join(lines_new)
 
diff --git a/jedi/parser/python/__init__.py b/jedi/parser/python/__init__.py
index 886a1039..5e936ffe 100644
--- a/jedi/parser/python/__init__.py
+++ b/jedi/parser/python/__init__.py
@@ -5,7 +5,8 @@ import os
 
 from jedi._compatibility import FileNotFoundError
 from jedi.parser.pgen2.pgen import generate_grammar
-from jedi.parser.python.parser import Parser, ParserWithRecovery
+from jedi.parser.python.parser import Parser, ParserWithRecovery, \
+    _remove_last_newline
 from jedi.parser.tokenize import source_tokens
 
 
@@ -82,6 +83,6 @@ def parse(code, grammar=None, error_recovery=True, start_symbol='file_input'):
     p = parser(grammar, code, start_parsing=False, **kwargs)
     module = p.parse(tokens=tokens)
     if added_newline:
-        p._remove_last_newline()
+        _remove_last_newline(module)
 
     return module
diff --git a/jedi/parser/python/parser.py b/jedi/parser/python/parser.py
index 08344206..5b82a231 100644
--- a/jedi/parser/python/parser.py
+++ b/jedi/parser/python/parser.py
@@ -69,7 +69,7 @@ class Parser(BaseParser):
             )
 
         if self._added_newline:
-            self._remove_last_newline()
+            _remove_last_newline(node)
         return node
 
     def get_root_node(self):
@@ -114,31 +114,32 @@ class Parser(BaseParser):
         else:
             return tree.Operator(value, start_pos, prefix)
 
-    def _remove_last_newline(self):
-        endmarker = self._parsed.children[-1]
-        # The newline is either in the endmarker as a prefix or the previous
-        # leaf as a newline token.
-        prefix = endmarker.prefix
-        if prefix.endswith('\n'):
-            endmarker.prefix = prefix = prefix[:-1]
-            last_end = 0
-            if '\n' not in prefix:
-                # Basically if the last line doesn't end with a newline. we
-                # have to add the previous line's end_position.
-                previous_leaf = endmarker.get_previous_leaf()
-                if previous_leaf is not None:
-                    last_end = previous_leaf.end_pos[1]
-            last_line = re.sub('.*\n', '', prefix)
-            endmarker.start_pos = endmarker.line - 1, last_end + len(last_line)
-        else:
-            newline = endmarker.get_previous_leaf()
-            if newline is None:
-                return  # This means that the parser is empty.
 
-            assert newline.value.endswith('\n')
-            newline.value = newline.value[:-1]
-            endmarker.start_pos = \
-                newline.start_pos[0], newline.start_pos[1] + len(newline.value)
+def _remove_last_newline(node):
+    endmarker = node.children[-1]
+    # The newline is either in the endmarker as a prefix or the previous
+    # leaf as a newline token.
+    prefix = endmarker.prefix
+    if prefix.endswith('\n'):
+        endmarker.prefix = prefix = prefix[:-1]
+        last_end = 0
+        if '\n' not in prefix:
+            # Basically if the last line doesn't end with a newline. we
+            # have to add the previous line's end_position.
+            previous_leaf = endmarker.get_previous_leaf()
+            if previous_leaf is not None:
+                last_end = previous_leaf.end_pos[1]
+        last_line = re.sub('.*\n', '', prefix)
+        endmarker.start_pos = endmarker.line - 1, last_end + len(last_line)
+    else:
+        newline = endmarker.get_previous_leaf()
+        if newline is None:
+            return  # This means that the parser is empty.
+
+        assert newline.value.endswith('\n')
+        newline.value = newline.value[:-1]
+        endmarker.start_pos = \
+            newline.start_pos[0], newline.start_pos[1] + len(newline.value)
 
 
 class ParserWithRecovery(Parser):