diff --git a/jedi/api/completion.py b/jedi/api/completion.py
index 23fac432..7562c49b 100644
--- a/jedi/api/completion.py
+++ b/jedi/api/completion.py
@@ -88,7 +88,24 @@ class Completion:
     def completions(self):
         leaf = self._module_node.get_leaf_for_position(self._position, include_prefixes=True)
         string, start_leaf = _extract_string_while_in_string(leaf, self._position)
-        if string is not None:
+
+        prefixed_completions = []
+        if string is None:
+            string = ''
+        bracket_leaf = leaf
+        if bracket_leaf.type == 'number':
+            string = bracket_leaf.value
+            bracket_leaf = bracket_leaf.get_previous_leaf()
+
+        if bracket_leaf == '[':
+            context = self._module_context.create_context(bracket_leaf)
+            before_bracket_leaf = bracket_leaf.get_previous_leaf()
+            if before_bracket_leaf.type in ('atom', 'trailer', 'name'):
+                values = infer_call_of_leaf(context, before_bracket_leaf)
+                prefixed_completions += completions_for_dicts(
+                    self._inference_state, values, string)
+
+        if string is not None and not prefixed_completions:
             completions = list(file_name_completions(
                 self._inference_state, self._module_context, start_leaf, string,
                 self._like_name, self._call_signatures_callback,
@@ -102,9 +119,12 @@ class Completion:
         completions = filter_names(self._inference_state, completion_names,
                                    self.stack, self._like_name)
 
-        return sorted(completions, key=lambda x: (x.name.startswith('__'),
-                                                  x.name.startswith('_'),
-                                                  x.name.lower()))
+        return (
+            prefixed_completions +
+            sorted(completions, key=lambda x: (x.name.startswith('__'),
+                                               x.name.startswith('_'),
+                                               x.name.lower()))
+        )
 
     def _get_context_completions(self, leaf):
         """
@@ -178,24 +198,13 @@ class Completion:
         if not current_line or current_line[-1] in ' \t.;':
             completion_names += self._get_keyword_completion_names(allowed_transitions)
 
-        nodes = _gather_nodes(stack)
-        if any(n.nonterminal == 'trailer' and n.nodes[0] == '[' for n in stack):
-            bracket = self._module_node.get_leaf_for_position(self._position, include_prefixes=True)
-            string = ''
-            if bracket.type == 'number':
-                string = bracket.value
-                bracket = bracket.get_previous_leaf()
-            context = self._module_context.create_context(bracket)
-
-            values = infer_call_of_leaf(context, bracket.get_previous_leaf())
-            completion_names += completions_for_dicts(values, string)
-
         if any(t in allowed_transitions for t in (PythonTokenTypes.NAME,
                                                   PythonTokenTypes.INDENT)):
             # This means that we actually have to do type inference.
 
             nonterminals = [stack_node.nonterminal for stack_node in stack]
 
+            nodes = _gather_nodes(stack)
             if nodes and nodes[-1] in ('as', 'def', 'class'):
                 # No completions for ``with x as foo`` and ``import x as foo``.
                 # Also true for defining names as a class or function.
diff --git a/jedi/api/dicts.py b/jedi/api/dicts.py
index e5a203ac..c25f7dd9 100644
--- a/jedi/api/dicts.py
+++ b/jedi/api/dicts.py
@@ -1,4 +1,5 @@
 from jedi.inference.names import AbstractArbitraryName
+from jedi.api.classes import Completion
 
 _sentinel = object()
 
@@ -8,12 +9,18 @@ class F(AbstractArbitraryName):
     is_value_name = False
 
 
-def completions_for_dicts(dicts, literal_string):
+def completions_for_dicts(inference_state, dicts, literal_string):
+    for dict_key in sorted(_get_python_keys(dicts)):
+        dict_key_str = repr(dict_key)
+        if dict_key_str.startswith(literal_string):
+            name = F(inference_state, dict_key_str[len(literal_string):])
+            yield Completion(inference_state, name, stack=None, like_name_length=0)
+
+
+def _get_python_keys(dicts):
     for dct in dicts:
         if dct.array_type == 'dict':
             for key in dct.get_key_values():
                 dict_key = key.get_safe_value(default=_sentinel)
                 if dict_key is not _sentinel:
-                    dict_key_str = str(dict_key)
-                    if dict_key_str.startswith(literal_string):
-                        yield F(dct.inference_state, dict_key_str[len(literal_string):])
+                    yield dict_key
diff --git a/test/test_api/test_completion.py b/test/test_api/test_completion.py
index 92e79b85..425f8932 100644
--- a/test/test_api/test_completion.py
+++ b/test/test_api/test_completion.py
@@ -283,12 +283,12 @@ def test_file_path_completions(Script, file, code, column, expected):
         ('ints[50', 6, ['']),#TODO ['0']),
         ('ints[50', 7, ['']),
 
-        ('strs[', 5, ["'asdf'", "'foo'", "'fbar'", Ellipsis]),
-        ('strs[]', 5, ["'asdf'", "'foo'", "'fbar'", Ellipsis]),
-        ("strs[']", 6, ["asdf'", "foo'", "fbar'"]),
-        ('strs["]', 6, ['asdf"', 'foo"', 'fbar"']),
-        ('strs["""]', 6, ['asdf', 'foo', 'fbar']),
-        ('strs["""]', 8, ['asdf"""', 'foo"""', 'fbar"""']),
+        ('strs[', 5, ["'asdf'", "'fbar'", "'foo'", Ellipsis]),
+        ('strs[]', 5, ["'asdf'", "'fbar'", "'foo'", Ellipsis]),
+        ("strs[']", 6, ["asdf'", "fbar'", "foo'"]),
+        ('strs["]', 6, ['asdf"', 'fbar"', 'foo"']),
+        ('strs["""]', 6, ['asdf', 'bar', 'foo']),
+        ('strs["""]', 8, ['asdf"""', 'fbar"""', 'foo"""']),
         ('strs[b"]', 8, []),
         ('strs[r"asd', 11, ['f"']),
         ('strs[R"asd', 11, ['f"']),