diff --git a/jedi/api/completion.py b/jedi/api/completion.py
index f53c03f6..0602d489 100644
--- a/jedi/api/completion.py
+++ b/jedi/api/completion.py
@@ -80,7 +80,7 @@ class Completion:
         self._code_lines = code_lines
 
         # The first step of completions is to get the name
-        self._like_name = helpers.get_on_completion_name(module, position)
+        self._like_name = helpers.get_on_completion_name(module, code_lines, position)
         # The actual cursor position is not what we need to calculate
         # everything. We want the start of the name we're on.
         self._position = position[0], position[1] - len(self._like_name)
diff --git a/jedi/api/helpers.py b/jedi/api/helpers.py
index 7a7abfe1..d726da69 100644
--- a/jedi/api/helpers.py
+++ b/jedi/api/helpers.py
@@ -20,23 +20,16 @@ def sorted_definitions(defs):
     return sorted(defs, key=lambda x: (x.module_path or '', x.line or 0, x.column or 0))
 
 
-def get_on_completion_name(module, position):
+def get_on_completion_name(module, lines, position):
     leaf = module.get_leaf_for_position(position)
     if leaf is None:
         return ''
-    elif leaf.type == 'string':
+    elif leaf.type in ('string', 'error_leaf'):
         # Completions inside strings are a bit special, we need to parse the
         # string.
-        lines = leaf.value.splitlines()
-        start_pos = leaf.start_pos
-        difference = position[0] - start_pos[0]
-        if difference == 0:
-            indent = start_pos[1]
-        else:
-            indent = 0
-        line = lines[difference][:position[1] - indent]
+        line = lines[position[0] - 1]
         # The first step of completions is to get the name
-        return re.search(r'(?!\d)\w+$|$', line).group(0)
+        return re.search(r'(?!\d)\w+$|$', line[:position[1]]).group(0)
     elif leaf.type not in ('name', 'keyword'):
         return ''
 
@@ -129,7 +122,6 @@ def get_stack_at_position(grammar, code_lines, module, pos):
     safeword = 'XXX_USER_WANTS_TO_COMPLETE_HERE_WITH_JEDI'
     # Remove as many indents from **all** code lines as possible.
     code = dedent(code + safeword)
-    print(repr(code))
 
     p = parser.Parser(grammar, code, start_parsing=False)
     try:
diff --git a/jedi/utils.py b/jedi/utils.py
index 05da0401..2502620c 100644
--- a/jedi/utils.py
+++ b/jedi/utils.py
@@ -74,7 +74,7 @@ def setup_readline(namespace_module=__main__):
 
                     lines = common.splitlines(text)
                     position = (len(lines), len(lines[-1]))
-                    name = get_on_completion_name(interpreter._get_module(), position)
+                    name = get_on_completion_name(interpreter._get_module(), lines, position)
                     before = text[:len(text) - len(name)]
                     completions = interpreter.completions()
                 finally: