2 files changed, 3 insertions, 2 deletions
diff --git a/setup.py b/setup.py
index 5890f4b..2f07200 100644
--- a/setup.py
+++ b/setup.py
@@ -1,6 +1,6 @@
 from setuptools import setup
 
-dic = {}
+dic = dict(__file__=None)
 exec(open('src/decorator.py').read(), dic)
 VERSION = dic['__version__']
 
diff --git a/src/decorator.py b/src/decorator.py
index 44303ee..dceca03 100644
--- a/src/decorator.py
+++ b/src/decorator.py
@@ -173,7 +173,8 @@ class FunctionMaker(object):
         # Ensure each generated function has a unique filename for profilers
         # (such as cProfile) that depend on the tuple of (<filename>,
         # <definition line>, <function name>) being unique.
-        filename = '<decorator-gen-%d>' % (next(self._compile_count),)
+        filename = '<%s:decorator-gen-%d>' % (
+            __file__, next(self._compile_count))
         try:
             code = compile(src, filename, 'single')
             exec(code, evaldict)