diff --git a/tools/perf/util/python-ext-sources b/tools/perf/util/python-ext-sources
index c40c2d33199ee266d3a2092c30aa8818e7e01fd0..64536a993f4a181b68072dc2ebe54f7e6f58da88 100644
--- a/tools/perf/util/python-ext-sources
+++ b/tools/perf/util/python-ext-sources
@@ -18,4 +18,5 @@ util/cgroup.c
 util/debugfs.c
 util/rblist.c
 util/strlist.c
+util/sysfs.c
 ../../lib/rbtree.c