diff --git a/_pytest/hookspec.py b/_pytest/hookspec.py
index 7cb60a131..99ae77d55 100644
--- a/_pytest/hookspec.py
+++ b/_pytest/hookspec.py
@@ -104,6 +104,9 @@ def pytest_pycollect_makemodule(path, parent):
     """
 pytest_pycollect_makemodule.firstresult = True
 
+def pytest_pycollect_onmodule(mod):
+    """ Called when a module is collected."""
+
 def pytest_pycollect_before_module_import(mod):
     """Called before a module is imported."""
 
diff --git a/_pytest/python.py b/_pytest/python.py
index 5d1ad4713..615e01a0c 100644
--- a/_pytest/python.py
+++ b/_pytest/python.py
@@ -60,8 +60,11 @@ def pytest_collect_file(path, parent):
                     break
             else:
                return
-        return parent.ihook.pytest_pycollect_makemodule(
+        mod = parent.ihook.pytest_pycollect_makemodule(
             path=path, parent=parent)
+        if mod is not None:
+            parent.ihook.pytest_pycollect_onmodule(mod=mod)
+        return mod
 
 def pytest_pycollect_makemodule(path, parent):
     return Module(path, parent)