diff --git a/jedi/parser/diff.py b/jedi/parser/diff.py
index f97d6add..5842fcfb 100644
--- a/jedi/parser/diff.py
+++ b/jedi/parser/diff.py
@@ -437,11 +437,17 @@ class _NodesStackNode(object):
     def get_last_line(self, suffix):
         line = 0
         if self.children_groups:
-            last_leaf = self.children_groups[-1].children[-1].get_last_leaf()
+            children_group = self.children_groups[-1]
+            last_leaf = children_group.children[-1].get_last_leaf()
             line = last_leaf.end_pos[0]
 
             # Calculate the line offsets
-            line += self.children_groups[-1].line_offset
+            offset = children_group.line_offset
+            if offset:
+                # In case the line_offset is not applied to this specific leaf,
+                # just ignore it.
+                if last_leaf.line <= children_group.last_line_offset_leaf.line:
+                    line += children_group.line_offset
 
             # Newlines end on the next line, which means that they would cover
             # the next line. That line is not fully parsed at this point.
diff --git a/test/test_parser/test_diff_parser.py b/test/test_parser/test_diff_parser.py
index 3ba36c64..595bf9cc 100644
--- a/test/test_parser/test_diff_parser.py
+++ b/test/test_parser/test_diff_parser.py
@@ -488,12 +488,6 @@ def test_in_parentheses_newlines(differ):
     b = 2""")
 
 
-    script = jedi.Script(code1, line=2, column=8)
-    assert script.call_signatures()
-    script = jedi.Script(code2, line=2, column=9)
-    assert script.call_signatures()
-    script = jedi.Script(code1, line=2, column=8)
-    assert script.call_signatures()
     differ.initialize(code1)
-    differ.parse(code2, parsers=1, copies=1)
-    differ.parse(code1, parsers=1, copies=1)
+    differ.parse(code2, parsers=2, copies=1)
+    differ.parse(code1, parsers=2, copies=1)