diff --git a/Lib/importlib/__init__.py b/Lib/importlib/__init__.py
--- a/Lib/importlib/__init__.py
+++ b/Lib/importlib/__init__.py
@@ -10,6 +10,7 @@
 # of a fully initialised version (either the frozen one or the one
 # initialised below if the frozen one is not available).
 import _imp  # Just the builtin component, NOT the full Python module
+import builtins
 import sys
 import types
 
@@ -46,7 +47,7 @@
             finder.invalidate_caches()
 
 
-def find_spec(name, path=None):
+def find_spec(name, package=None):
     """Return the spec for the specified module.
 
     First, sys.modules is checked to see if the module was already imported. If
@@ -61,10 +62,17 @@
     order for a submodule to get the correct spec.
 
     """
-    if name not in sys.modules:
-        return _bootstrap._find_spec(name, path)
+    from .util import resolve_name
+    fullname = resolve_name(name, package) if name.startswith('.') else name
+    if fullname not in sys.modules:
+        parent_name = fullname.rpartition('.')[0]
+        if parent_name:
+            parent = builtins.__import__(parent_name, fromlist=['__path__'])
+            return _bootstrap._find_spec(fullname, parent.__path__)
+        else:
+            return _bootstrap._find_spec(fullname, None)
     else:
-        module = sys.modules[name]
+        module = sys.modules[fullname]
         if module is None:
             return None
         try: