diff --git a/tools/perf/util/setup.py b/tools/perf/util/setup.py
index 1947b0430c94..e24ffadb20b2 100644
--- a/tools/perf/util/setup.py
+++ b/tools/perf/util/setup.py
@@ -5,7 +5,7 @@ from distutils.core import setup, Extension
 perf = Extension('perf',
 		  sources = ['util/python.c', 'util/ctype.c', 'util/evlist.c',
 			     'util/evsel.c', 'util/cpumap.c', 'util/thread_map.c',
-			     'util/util.c', 'util/xyarray.c'],
+			     'util/util.c', 'util/xyarray.c', 'util/cgroup.c'],
 		  include_dirs = ['util/include'],
 		  extra_compile_args = ['-fno-strict-aliasing', '-Wno-write-strings'])